PACKAGE INCLUDES: 16 Pieces black garden hose washers with 4 small outer tabs and 16 Pieces red heavy duty thermoplastic rubber, good sealing and packing together in bag for delivery. | SIZE DETAIL:Black washer internal diameter is 5/8 ，inches/ 16 mm and red washer internal diameter is 13mm，all hose washer external diameter is 1 inches/ 25 mm,the thickness is 1/8 inches/ 3 mm. | MATERIAL: these rubber gaskets are made of good quality rubber, durable and do not easily lose shape and leave scratches; These garden washers fit all standard 3/4 inch garden hose fittings. | EASY TO ASSEMBLE: Disconnect water controller, then twist the faucet and replace the original one. Easy to replace and fix a leaky water tap connection.These washers seals are all function perfectly. | BUY WITH CONFIDENCE:If the product is damaged when shipping, we will send you another new one for free. If you are not satisfied with the product, you can send it back to us. We will refund you as soon as possible.