Every toolbox, workshop, garage and truck box needs this incredibly handy copper washer assortment. With a wide range of sizes, chances are the size you need will be here and if not, at least something to improvise with. The durable storage case has interior dividers and a printed size guide for easy identification and selection. 

This handy copper washer assortment kit is perfect for sump plugs, water, fuel and hydraulic fittings, contains 30 popular sizes as follow: