Peg -100pcs Black Silicone Flat O-Rings for Half Inch Hand Shower Highlights brand generic 100pcs Black Silicone Flat O-Rings for Half Inch Hand Shower Description: These flat O-rings are made of high quality silicone, which is resistant to high temperature, non-toxic and odorless. Installation: shower nozzle, bellows hose and most standard garden hose fittings. Easy to replace and suitable for preventing water leakage. Size (External Dia.xInner Dia.xThickness): 1/2inch: approx.19x10x3mm/0.75x0.40x0.12inch, 3/4inch: approx.24x15x3mm/0.94x0.60x0.12inch Color Black Size Chart: 1/2inch Size (External Dia.xInner Dia.xThickness): about 19x10x3mm/0.75x0.40x0.12inch 3/4inch (External Dia.xInner Dia.xThickness): about 24x15x3mm/0.94x0.60x0.12inch Package includes: Flat Silicone O-Rings black 100 pieces