For bike mount hidden is specially designed for bicycles with front fork holes(Note:For is not included!) After the for bike mount is installed on the hole of the bicycle front fork, notice that there is an for hidden inside except you. This effectively prevents the bike from being stolen and lost. For bike mount hidden can perfectly protect the for from water and dust. Made of aluminum alloy and plastic material, the shell is strong and . The expansion plug design makes the for bike mount perfectly fit your bicycle's front fork hole, after being installed on the bike, the for not fall off even in bumpy riding. Colour:Black Material:Aluminum Plastic Package Contents: 1 * bike front fork down tube stand kit 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.