1.2Made of practical rubber/fiber/EVA, heat resistant, durable and reliable.318 different sized washers that stop leaks and seal fittings4Essential plumbing assortment for home and business5used for faucets valves plugs and pipe and fitting connectionSize:Rubber seals:10pcs: 4x16x4mm10pcs: 4x17x4mm5pcs: 8x14x4mm5pcs: 85x18x4mm5pcs: 95x175x4mm5pcs: 105x14x4mm10pcs: 12x24x2mm10pcs: 15x24x3mmFiber seals:10pcs: 10x137x18mm10pcs: 115x175x12mm10pcs: 17x21x12mm10pcs: 17x24x12mm10pcs: 20x25x12mm5pcs: 27x33x12mmEVA seals:10pcs: 12x175x2mm10pcs: 17x24x2mm3pcs: 27x38x2mm3pcs: 30x39x2mmMaterial:Rubber + fiber + EVAColour:Red + blackPackage Contents:141 * washersOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.