Loading... Please wait...
  • FREE Shipping
  • 30 Day Money Back Guarantee
  • 1 year manufacturers guarantee
  • Discreetly shipped for privacy
  • penis ring holds firm erection erectile dysfunction premature ejactulation
  • Image 2
  • Image 3
  • Image 4
  • Erection constriction ring for ED treatment

Pos-T-Vac Mach Support Ring | Penis Pump Accessories

Ships in 1 Business Day

Product Description

 The Pos-T-Vac Mach Support Ring is a premium vacuum therapy penis pump accessory that provides user comfort and effective tension. This support ring is 30% thicker than Pos-T-Vac's basic support ring styles. This thickness in the center of the ring helps produce tension that is dispersed over a wider area, allowing the user to wear a large-size ring while still being able to maintain adequate firmness. The Mach Support Ring features looped handles that are designed for easy loading, allowing users to guide the support ring over the loading cone and onto the penile tube.  

Product Specifics
Each ring lasts for 30-40 uses
Dimensions: 2.5" x .45" x 1.25" 
Weight: 0.6 oz  
Inside diameter by size: 
#5 Small - 6 mm 
#6 Medium - 8 mm 
#7 Large - 11 mm
#8 XLarge - 14 mm
Warranty: 30-day limited warranty 


Rings are sold as individual units. Multiple Mach Support Rings are shown in the product images to help illustrate the various ring sizes.


Product Reviews

Write Review

  1. It works well for me 5 Star Review

    Posted by on 23rd Dec 2018

    Great buy

  2. Little tight 3 Star Review

    Posted by on 10th Mar 2018

    Probably got the wrong size. Seems to be similar to the standard medium as far as tension is concerned. Was using the #3 so probably should have ordered the x-large on this one. Getting the right tension is key with the rings.

  3. Best support rings available 5 Star Review

    Posted by on 1st Mar 2018

    These support rings are the best I've found anywhere. They are as comfortable as a support ring can be and they are more durable than the others lasting longer for me than the uses projected by Pos-T-Vac. I recommend them without any hesitation.

  4. It Works Every Time 5 Star Review

    Posted by on 21st Dec 2017

    After the normal period of fiddling around, I finally connected with the proper ring size. I found that to be the key to repeat performance each time. I have experienced no difficulty mounting the ring on the tube (the key is to lubricate the outside of the tube). The proper size ring is a firm hold, which produces firm results! I have found the firm results tend to last longer than my lungs do, LOL. Removing the ring can be a challenge unless one pulls it open a couple or three times to begin to let the blood flow out.- I saw a complaint about the rings not lasting very long. I have rings that have lasted well beyond the 20 use expected lifespan. They need to be replaced when one notices a tiny tear in the ring material; when that happens the ring is no longer able to provide the correct "hold" and the performance (yours and its) will degrade. I use the Pos-T-Vac pump, and therefore have no trouble getting the ring over the tube. We're all in this together, so I will share this: once the system is used on a regular basis, the pump and procedure become minimally invasive to the "task at hand!"

  5. Effective but hard to install 4 Star Review

    Posted by on 9th Nov 2017

    They are very stiff, which makes for a good erection once you get it on your penis; but unfortunately, they are very difficult to get fitted on the pump tube, even with the special tool I previously purchased.

  6. Confidence 5 Star Review

    Posted by on 17th Aug 2017

    Knowing for sure that you can perform is wonderful thing. You can always rely on the vacuum pump and ring to achieve a full erection very time. It provides peace of mind and makes lovemaking fun again.

  7. Mach Support Ring 4 Star Review

    Posted by on 14th Apr 2016

    The tension seems to weaken over time!

  8. Feeling Good 5 Star Review

    Posted by on 1st Feb 2016

    I like the way it fell, I just love using it, when I take it off, its comes off easy.

  9. Very effective results 5 Star Review

    Posted by on 27th May 2015

    these rings are very effective and easy to use.

  10. comfortable 4 Star Review

    Posted by on 17th Jul 2012

    easy 2 load easy 2 come off compared 2 the others rings

Find Similar Products by Category

Warranty Information

30 Day Limited Warranty. Warranty void if non-water based lubricant used