Features: Bicycle GPS mount for Roadmate Easy to install on bicycle bar with one screw Two soft rubber plates for firm mounting 360 degrees ball head for easy adjustment Bar Diameter Range: Approx. 0.95-1.05inch / 2.4-2.7cm Ball-head Diameter: Approx. 0.67inch / 1.7 cm Material: Plastic Color: Black Compatibility: Roadmate: 1200 1212 1230 1400 1412 1430 1415 1425 Maestro: 3200 3210 3220 3225 3250 4200 4210 4220 4250 4350 4370 4215 4245 How to Use: Insert ball-head to the back of the holder Install the mount on the bicycle bar and fasten the screw Put GPS onto the holder Package Includes: 1 x GPS Bicycle Mount 1 x Holder