Reddit reviews 210 Silicone O-Ring, 70A Durometer, Red, 3/4" ID, 1" OD, 1/8" Width (Pack of 100)
We found 1 Reddit comments about 210 Silicone O-Ring, 70A Durometer, Red, 3/4" ID, 1" OD, 1/8" Width (Pack of 100). Here are the top ones, ranked by their Reddit score.
Made of silicone for use with a variety of chemicals and fluidsCan be used across a wide temperature range from -65 degrees F (-54 degrees C) to 450 degrees F (232 degrees C)Round in cross-section to provide a seal between cylindrical overlapping surfacesDurometer (hardness) of 70A for resistance to penetrationMeets standards defined by Aerospace Standard AS568A
I tried the thinner orings and different materials but most of the time I was actually using them as a rubber band and the stretch was holding them in place. That extra tension was cutting off circulation and caused it to hurt after a couple hours or stretch and fall off entirely.
https://www.amazon.com/gp/product/B000FN0YJ4/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1
These new ones are thick and don't stretch hardly at all which makes it hard to put on but here is hardly any tension but they are staying put.
As a bonus I found that you can twist them into a figure 8 shape, and then insert it to act as a keeper.