The Arctic Hayes Plumber's Essential Washer Kit contains an assortment of 9 of the most commonly used sizes. Handy pack to keep in a work van or in the home. Contains: 30 x Fibre Washers Y.I.F: 1/2in20 x MT Ball-Cock Washers: 1/2in20 x Fibre Ball Valve Seat Washers: 1/2in10 x Rubber Bottle Trap Washers: 1.1/4in and 1.1/2in50 x Cap & Lining Washers: 1/2in and 3/4in20 x Rubber Shower Flex Washers: 1/2in10 x Washing Machine Hose Washers: 3/4in35 x Fibre Flexi Tap Con Washers: 1/2in and 3/4in15 x Compression Olives: 15mm and 22mmAdditional Information:• Sundries: Washers• Pack Qty.: 210