This item is designed for bike with 1-1/18" stem mount. With 5mm height, it can tightly attached to the bike, ensure the stability of your cycle computers. It is compatible for CatEye CC-PA100W/500B, CC-RD300W/310W/400DW/410DW/420DW/430DW/500B, CC-VT210W/220W, CC-MC200W, CC-GL10/11/50/51, CC-PD100W, CC-COM10W, easy to use.

Features:
Designed for bike with 1-1/18" stem mount.
With 5mm height, it can tightly attached to the bike, ensure the stability of your cycle computers.
Compatible for CatEye CC-PA100W/500B, CC-RD300W/310W/400DW/410DW/420DW/430DW/500B, CC-VT210W/220W, CC-MC200W, CC-GL10/11/50/51, CC-PD100W, CC-COM10W GPS computers.
You can easily adjust the angle of stem mount, and fix the mount with the hex wrenches.
Stable and durable.

Specifications:
Material: CNC Aluminum + Plastic
Compatible with: for CatEye CC-PA100W/500B, CC-RD300W/310W/400DW/410DW/420DW/430DW/500B, CC-VT210W/220W, CC-MC200W, CC-GL10/11/50/51, CC-PD100W, CC-COM10W
Item Size: 8.5 * 3.6 * 1.4cm / 3.35 * 1.41 * 0.55in
Item Weight: 24g / 0.85oz
Package Size: 10 * 8 * 1.5cm / 3.94 * 3.15 * 0.59in
Package Weight: 53g / 1.87oz

Package List:
1 * Stem Mount
2 * Hexagon Wrench
1 * Hexagon Screw

Note:
Bike computers are NOT included.