Review on ⚙️ Essential 500PCS Black Nylon Washers Assortment Kit - M2, M2.5, M3, M4, M5, M6, M8, M10 Metric Sealing Spacer Gasket Rings by Jarod Berthelson

These are Nylon Washers. They are flat, round, and have round holes in the middle. So. The main issue is that they are packaged in a split case which is too small for the largest size so it sticks out. This is how small washing machines go where they want. If you're looking for a 870 item sorting project to keep you busy during COVID, this is a great choice. If you want to get the puck you're reaching for on the first try without looking, it's more of a gamble. They are cast, not stamped. I found a random sprue that mixed with one of the shims and many of them have bulges where removing the sprue was a bit hesitant. I don't think this affects their performance significantly, although depending on intended use you may need to smooth out those with rough attachment points. But it just makes them look and feel a little cheap. what they were. Hope they hold up well.