600pc Assorted Fibre Washers Contains 12 popular sizes. Contained in a handy plastic organiser storage case. 160x 10x5.5x1mm (outer diameter, inner diameter, thickness). 100x 12x6.5x1mm. 80x 16x10x1mm. 60x 16x8x1mm. 40x 19x12x1mm. 40x 20x12.5x1mm. 30x 22x16x1mm. 20x 27x20x1mm. 20x 22.5x14x1mm. 15x 25.5x17.5x1mm. 20x 32x22x1mm. 15x 32x24x1mm.