[Wide Compatibility] This bike mount with headlight holder is compatible with Garmin Edge 530, 830, 1000, 1030, 130, and 130 Plus GPS computers, XOSS G and G+ GPS devices, iGPSPORT GPS computers, and Varia RTL510 Radar. It fits road bike handlebars with diameters of 25.4 mm and 31.8 mm, allowing easy viewing of performance data on your Garmin Edge bike GPS computer. [More Versatile] Compatible with Garmin Varia UT800 Smart Headlight and GoPro-style action cameras. [Durable Construction] Made from durable plastic. Designed to securely hold your electronics in place on your bicycle, even on rough terrain. [Safe and Secure] Designed to securely mount and precisely position your GPS computer on your bike, helping you stay focused on your ride. [Quick and Easy to Install] Mounts to your bicycle handlebars in under 60 seconds. Tool-free installation allows for simple attachment and removal from any standard bicycle handlebar. Simply locate and tighten the locking nut. Color: Black Material: Plastic Package Contents: 1 × Bicycle GPS extension bracket 2 × Reducing sleeves 1 × Lamp holder Note: Lighting conditions and screen settings may cause slight color variation between the image and the actual product. Measurement tolerance: ±1–3 cm.