Good elasticity and easy to install. I will check the durability from now on.
(Translated by machine.)

The О ring of the drain plug started to crack and leak, so I bought it as a replacement. I am grateful that you can choose the size you need and purchase it.
(Translated by machine.)

The O-ring of the push-type drain plug of the wash basin stretched and became sloppy, so I bought it as a replacement. The outer diameter of the mounting part was 36 mm actually measured, but the O-ring with a nominal diameter of 36 mm fits perfectly, but due to the thickness of the O-ring, the drain plug does not go down to the bottom. If the thickness of the O-ring is one size thin, the nominal diameter is 22 mm, which is too small, and the one with a thickness of 3.5 mm is stretched to some extent and attached, or the G standard or S instead of the P standard purchased this time. I don't know if I should choose a standard because I am an amateur. There is no problem as a thing, and there is no deduction because of nonconformity due to my ignorance.
(Translated by machine.)

Good product as expected! I want you to sell it at a bargain price with a large amount.
(Translated by machine.)

Thanks to you, I was able to use the high pressure washer without stress.
(Translated by machine.)

As a usual replacement, I'm still using it without any problems.
(Translated by machine.)

We purchase for repair of water leakage of angle type faucet. The water leak has been fixed.
(Translated by machine.)

Since the dimensions are clearly stated, I was able to use the ring that was exactly where I needed it (3 places). After installation, water leaks stopped.
(Translated by machine.)

It is used to prevent slipping by attaching 3 to 10 to a screwdriver that requires force for rotation.
(Translated by machine.)

I bought a coolant funnel from Monotaro, but the O-ring will run out if I repeat it many times. I inquired, but it is not sold.
(Translated by machine.)