420-Pcs [9 Sizes] White/Black Nylon Flat Washer Assortment Set - M2 M2.5 M3 M4 M5 M6 M8 M10 M12

If you need plastic washers, this is a good option, but it really could use more medium/smalll-ish sized washers. It seems to have a lot of tiny and a lot of large sizes, but if you're using it for things like computers or smaller size M3-M5 sort of sizes, there will probably only be one size that fits. There's maybe 15 or 20 of each color though, so it should have enough unless you really need a ton. This is really a good option if you have a lot of different sized bolts or screws that need plastic washers. If you need more of a medium to smaller size, it could have more choices. I'd probably end up ordering individual sized washers in the future.

I wanted an assortment of washers for home improvement projects. This set was inexpensive and seemed to fit the bill. Unfortunately the hinge for the container came broken, due to a flimsy plastic nub that secures the hinge. This unfortunately turns a potentially tidy kit into a mess. The washers themselves seem functional. For what it's worth the same kit is offered with twice as many pieces for a dollar more under the brand name Keadic at the time of writing. It unfortunately has the same chintzy hinge.

Such a basic thing to get wrong, just make the compartment dividers flush with the lid! There's enough room for the smaller washers to get to other compartments apparently, this is still in the plastic wrap. The washers themselves are fine.