TWCC 24 Size 1280 Pcs O Rings Assortment Kits Metric Nitrile NBR Rubber Washer with Pick and Hook Set for Car Faucet Pressure Plumbing Repair,Air or Gas Sealing Connections

They seem to be fine but...when I opened the box everything was mixed up. All different sizes mixed together so packaging needs to be improved.

good

Out of the 1280 rubber O rings there was only one that I needed. I had hoped that out of that many other rings surely more would fit future projects but I am disappointed to say I haven't found any the right size since my initial purchases. They are quality O rings with a good selection but useless for the projects I have been working on. C'est La Vie.

Product does what it does

This kit should have been great. You never know what O-ring you'll need so a huge kit seems like the perfect solution. However, every time I go to the kit I can't find the size I need. In general the diameter of these O-rings is too small to be useful. 1.0-1.5mm cross section doesn't seem to cut it. I got frustrated and bought a much smaller 150 piece kit from Lowes. I've gone to that kit twice now and it had the sizes I needed, both times. Note that one of those times was for a power washer hose, two sizes (upper and lower). This kit didn't have it but the small Lowes kit did, for $6.