Specifications: Material: Aluminum Alloy Color: red, black, green, gold, silver (optional) Stem Diameter: 11.3mm / 0.4” Stem Size(L x W): 4.3 x 2.5 cm / 1.7 inches x 1 inch Wire length: 7.5 mm Package weight: about 36g Installation: suitable for standard tubeless wheels, 11.3mm wheels and 7.5mm thread lengths, such as Honda, Kawasaki, Suzuki and Yamaha, also suitable for some tire lengths and 7.5mm cable lengths Package includes: 1 pair of tyre valves Note: 1. Monitors are not calibrated same, item color displayed in the picture may be slightly different from the real object. Get the true standard. 2. Please check the size of your bicycle or bicycle before ordering!