Product Description GJ Works 933pc Spring Washer Assortment GKA933 This handy workshop kit contains a total of 933 common spring washers in 12 different sizes, making it an ideal kit to keep in the workshop or service truck Features Metric & Imperial Zinc Plated Steel 12 Sizes: 6mm to 12mm & 5/32 to 5/8 ID 933 Piece