Pressure-free; Compatible with all tires; Mounting without rim mount. With the extension, your tires will always be filled correctly. It doesn't matter what means of transport or tire model you use. With few exceptions, no rim mount is required to install the extension. Save yourself unnecessary problems with tire inflation by purchasing this extension. To install the extension, you just need to screw it on, then fix it and you can start filling with air. It doesn't matter if it's a small or a large tire. Even very deeply seated valves don't matter. Material: brass Weight: approx. 30 g Color: gold Angle: approx. 90 degrees Total length: approx. 37.5 mm Height: approx. 12.5 mm Quantity: 2 pieces Package contents: 2 x valve stem extension Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The allowed measurement error is +/- 1-3 cm.