Pos-T-Vac Ring Kit — Starter Constriction Ring Set

By Pos-T-Vac / Timm Medical Technologies  |  FSA/HSA Eligible

2 Ultimate II Round Rings (Sizes 1 & 2)  |  Loading Sleeve  |  Water-Based Lubricant  |  User Manual  |  For Mild to Moderate ED  |  With or Without VED Pump  |  Non-Returnable Personal Item

Sizing note: this kit includes only Sizes 1 (Small, 0.34") and 2 (Medium, 0.44"). Men who need Size 3 (Large), Size 4 (X-Large), or Size X (X-Small) should purchase individual Ultimate II Round Rings in their correct size rather than this kit. Both customer reviews noted the included rings ran small — if you have previously used a medium or larger tension ring, consider starting with Size 2 from this kit and having a Size 3 on hand.

The Pos-T-Vac Ring Kit introduces new users to constriction ring therapy with a complete starter package — two ring sizes for initial sizing, a loading sleeve, lubricant, and instructions. The Ultimate II Round Rings included have a jelly-like feel and are notably stretchier than stiffer ring types, making them a forgiving first experience for men trying constriction rings for the first time. The kit is designed for mild to moderate ED — specifically for men who can achieve an erection but have difficulty maintaining it due to venous leakage or other factors, and for men seeking a non-pharmaceutical complement to ED medications such as Viagra or Cialis. Rings can be used with any VED pump or applied directly without a pump. Safe wear limit: 30 minutes. By Pos-T-Vac / Timm Medical.

Kit Contents

Need sizes outside 1 and 2? See individual Pos-T-Vac Ultimate II Round Rings (X-Small through X-Large). Call 1-866-218-0902 with sizing questions.

Key Features

• Starter kit for mild to moderate ED — not for severe ED — the Pos-T-Vac Ring Kit is specifically recommended for men who can achieve erections but have difficulty maintaining them; it is not the appropriate starting point for men who cannot achieve erections at all (who typically need a full VED pump system) or for men with severe erectile dysfunction where higher-tension rings and VED pump therapy are the indicated treatment
• Jelly feel — stretchier than stiffer ring types — Ultimate II Round Rings have a flexible, jelly-like feel and are notably more stretchable than harder ring materials; this stretchiness makes them easier to apply, more forgiving of size variation during initial sizing trials, and more comfortable for first-time users who are unfamiliar with how constriction rings should feel
• Loading sleeve included — the cone-style loading sleeve pre-stretches the ring onto itself so it can be slid easily onto the base of the penis; loading sleeves significantly reduce the difficulty of ring application compared to stretching and placing the ring by hand
• Works as a complement to ED medications — some men find that Viagra or Cialis helps them achieve an erection but does not provide sufficient rigidity or duration; a constriction ring applied at erection onset can extend duration and firmness by trapping blood at the base
• Works with or without a VED pump — the rings in this kit can be used after a pump-assisted erection or applied directly during or after natural erection onset without a pump
• Kit includes Sizes 1 and 2 only — the two included ring sizes cover the small-to-medium range of the Ultimate II Round Ring lineup; users who need larger sizes should order individual rings in Size 3 (Large, 0.56"), Size 4 (X-Large, 0.65"), or Size X (X-Small, 0.32") separately
• 30-minute maximum safe wear time — rings must be removed within 30 minutes of application regardless of erection status
• Non-returnable personal item | FSA/HSA eligible | By Pos-T-Vac / Timm Medical

Clinical FAQs

What is included in the Ring Kit and how does it differ from buying individual Ultimate II Round Rings?

The Pos-T-Vac Ring Kit includes two Ultimate II Round Rings (Size 1 Small and Size 2 Medium), a loading sleeve, a sample tube of water-based lubricant, and a user manual. Purchasing individual Ultimate II Round Rings provides only the ring itself — no loading sleeve, no lubricant, and no instructions. The kit is the better starting option for first-time constriction ring users because it provides the loading sleeve (which meaningfully reduces the difficulty of ring application) and lubricant alongside the two most commonly starting sizes. Users who already have a loading sleeve and lubricant, who know their ring size, or who need a size outside 1 and 2, are better served by purchasing individual rings in their specific size. The key limitation of the kit compared to buying individual rings is the size range: the kit only covers Sizes 1 and 2, which are on the smaller, higher-tension end of the five-size Ultimate II Round Ring range. The most common piece of feedback from kit buyers is that the rings are too small — if you have used a medium or large constriction ring before, or if you are new and uncertain, considering a Size 2 alongside a Size 3 ordered individually gives more flexibility than the kit's Sizes 1 and 2 alone.

How does this kit help men who can achieve but not maintain an erection?

The most common mechanism of erection loss in men with mild to moderate erectile dysfunction who can initiate but not sustain an erection is venous leakage — venous blood that flowed into the erectile tissue during arousal flows back out more quickly than it should before ejaculation, causing the erection to subside prematurely. A constriction ring applied at the base of the penis creates gentle pressure around the base of the penis that partially restricts venous outflow, slowing the rate at which blood leaves the erectile tissue. This is the same mechanism as VED tension ring therapy, applied without a pump — the ring is placed directly after natural erection onset (or after VED-pump-assisted engorgement) and maintains the erection by trapping a portion of the engorgement blood in place. The stretchier jelly feel of the Ultimate II Round Rings means they apply this pressure in a more gradual, distributed way than stiffer rings, which is why they are often recommended as a starting point for men new to this type of therapy. The ring does not affect arousal or orgasm — it acts purely at the mechanical level of blood flow restriction. The 30-minute wear limit ensures the constriction does not become prolonged enough to cause tissue ischemia.

What should I do if the rings in the kit are too small?

Both customer reviews for this kit noted that the included rings were too small for their needs — a common finding since the kit only includes Sizes 1 (Small, 0.34") and 2 (Medium, 0.44"), which are on the higher-tension, smaller end of the five-size range. If the Size 2 Medium ring is too tight, uncomfortable, or difficult to remove within 30 minutes, it is too small. In that case, order individual Ultimate II Round Rings in Size 3 (Large, 0.56") or Size 4 (X-Large, 0.65"). The loading sleeve from this kit can still be used with larger rings. If the Size 2 Medium ring maintains the erection effectively but feels tight, you may want to try a ring with higher displacement (such as the Hex or Mach 1 format) in a similar or larger size rather than simply moving to a larger round ring — higher-displacement rings distribute the same constriction pressure over more surface area, often improving comfort at the same effective tension level. Call us at 1-866-218-0902 to discuss ring sizing options and which individual sizes to order based on your experience with the kit rings.

Questions about the Pos-T-Vac Ring Kit, ring sizing, or individual Ultimate II Round Ring sizes? Call our product specialists: 1-866-218-0902  |  Mon–Fri 9am–5pm, Sat 9am–3pm EST