Attributes (specs): 

• CNC Machined 6061 T6 Aluminum
• Compatibility – 31.8mm and 35mm diameter handlebars.
• New clamp design is hinged for ease of installation.
• Supported Computers – Most Garmin Edge, Forerunner, and Touring models, including 830, 820, 530, 520, 510, 500, 130, 25, 20 (Edge 1030 and Edge 1000 fits on the longer XL mount)
• Combo Compatible – versions available that support GoPro style interface action cameras and lights
• Weight – 45.4 grams;  Combo Mount 55.4 grams
• Anodized Colors: Black, Red, Blue, Gunmetal
• Made in USA, Lifetime Guarantee