Bracket installation instructions:1. unscrew the 2 screws, mount it to the motorcycle/electric bike/bicycle and tighten it; 2. orient the mounting head of the bracket to your desired position and make sure the bracket is secure; 3. Install the tire pressure receiver to the bracket, tighten it and close it; Move the connector using the ball-end rotary adjustment knob to adjust the proper angle. Weight: 230 grams Colour:black Material:Alloy + plastic Size:10 x 5 x 4cm Package Contents: 1 x detector 2 x screw nut 2 x screw nut caps 1 x bracket 1 x charging cable 1 x wrench Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.