Features: You can mount it on your bicycle seat rail, capture wonderful photo/video with your action camera when you are riding. Made of CNC aluminum alloy, durable and sturdy. Single saddle rail mount weighs only 30g, very lightweight but super strong. Size: 60*30mm. Compatible with most bikes. Fits for GoPro Hero 7/6/5/4/HERO(2018), for SJCAM YI AKASO Campark Crosstour APEMAN and other action cameras. Specifications: Material: Aluminum alloy Color: Black, Red, Silver (Optional) Item Size: 60 * 30mm Item Weight: 30g / 1.06oz Package Size: 6 * 3 * 2cm / 2.4 * 1.2 * 0.8inch Package Weight: 32g / 1.13oz Package List: 1 * Bicycle Saddle Rail Mount 2 * Long Screw 1 * Hex Wrench Note: Action camera & case are not included.