uxcell Nitrile Rubber O-Rings 15mm OD 7mm ID 4mm Width, Metric Sealing Gasket for Automotive Machine Plumbing, Pack of 10

We ordered these for something they didn't work for that but I'm sure they would work well for whatever they're meant for

These fit great on various audio and video mounts. They are just the right stiffness. Put them between the screw and the plate and after tightening you can still twist and reposition the mic, light, camera or whatever without having to loosen the screws.

To call those cock rings is false advertising. Their selling O rings that have no elasticity. No way these could fit on an adult.Take more pride in your product.

They are very durable and will stretch without breaker.

No way to know exactly what the material composition is, but it's in an oily hot engine compartment and appears to be ill-affected by the condition. Working great so far

This is what you need to fix Mercedes top hydraulics.

Delivery was fast, and the quality is good. Neither Hardware nor Automotive stores in my area carry this critical product. Low oil pressure in older Japanese cars often leads to the demise of these durable cars. This simple extra-thick o-ring can help restore that pressure. Located between the main engine bearing bridge and the bearing journal inside the engine. It provides proper oil pressure to the crankshaft.

I have no clue what these are for…