Features: 1) Sizes: 40mm (1-1/2), 45mm (1-3/4), 50mm (2), 65mm (2-1/2), 80mm (3), 100mm (4) 2) Working pressure: 8 bar (0.8MPa), 10 bar (1.0MPa), 13 bar (1.3MPa), 16 bar (1.4MPa) 3) Bursting pressure: equal or more than 24 bar, 30 bar, 39 bar, 48 bar separately 4) Materials: a) Outside jacket:high synthetic polyester fiber and polypropylene, or polyester and polyester long yarn, polypropylene only b) Inner lining: red, white or black rubber c) Outside jacket colors: red, white, other colors are also available