About This This kit contains 2 units of each of the 3 different sizes of rubber sleeves for pipe water stopper (1/4", 3/8", and 1"). Fit for Tube Type: 1/2 / 3/4 / 1 inch; Fit for Tube Diameter: 20,25,32mm / 0.78,1,1.25 inch Pipe Water Stopper Size: 22x22x6mm / 0.87x0.87x0.24 inch(ODxHxID); 16x20x6mm / 0.63x0.79x0.24 inch(ODxHxID); 14x16x6mm / 0.55x0.64x0.24 inch(ODxHxID) Application: The pipe water stop rubber sleeve is a replacement part for the pipe water stop needle, mainly used for quick temporary blocking of pipes, such as maintenance, emergency or pipeline testing. Advantage: Install these rubber sleeves into the water stop needle and insert the water stop needle into the pipe and twist to expand the rubber sleeves, effectively achieving a waterproof seal. Overview Size : 1/2"/3/4"/1" Brand : PATIKIL Color : Black Item dimensions L x W x H : 0.04 x 0.04 x 0.04 inches Item Weight : 0.04 Kilograms Manufacturer : PATIKIL