112 Polyurethane O-Ring, 70A Durometer, Round, Translucent, 1/2" ID, 11/16" OD, 3/32" Width (Pack of 10)

Very well made with accurate sizing and quality materials.

Lost the small O-ring in my Hydro Flask straw lid. Hydro Flask does not offer a replacement O-ring, but this (size: 202) works well.

Fair fit and finish, a few of the clear rings were a little yellowish, so not sure if this was an old batch, but they were still soft and pliable.

I purchased these to use on the outside of hard plastic straws, but up next to the inside of the lid of plastic insulated glasses. When the glasses are turned over, if these O-rings are snug to the top of the inside of the lid, there are no spills, or at least not before you can pick up the glass. Some liquid might actually come out of the straw. This has been a carpet and table saver around my 5 and 7 year old grandchildren. With the o-rings being clear, they look nice inside the lid and on the clear hard plastic straws. The kids don't like them much because they can't pull the straws out of the glasses.

Fits woosah spinners perfect r188 use 013 size

Less than a dollar each, but if you need to get these from a dealership, the price goes up to 20 dollars each.

Using for my rock tumbler purchased from harbor freight, their replacement seem troublesome.

Worked great for my air rifle breech seal