Features: Backpack clip, shooting from chest angle, makes people feel immersive. Quick clip and remove to the waist belt, bag, safety harness and other place in an easy and firm way. Self-adhesive mount, exquisite stitching, waterproof fabric, durable for long service life. Quick assembly and disassembly, convenient to use, wide compatibility, suitable for wide range of action cameras in the market. Perfect used in skiing, cycling, hiking, snowboarding, snorkeling, rowing and other outdoor activities, recording the wonderful moment. Specifications: Material: ABS+CanvasBackpack Clip: Approx. 125x66mm/4.92x2.59inchType: Backpack Clip, Backpack Clip with J-hook & Long Screw, Backpack Clip with J-hook & Long Screw & Phone Clamp(optional)Phone Clamp Range: Width of 58-75mm/2.2-2.9"Package Includes: 3 Packages Optional:Package B-1 Includes: 1x Backpack ClipPackage B-11 Includes: 1x Backpack Clip with J-hook & Long ScrewPackage B-12 Includes: 1x Backpack Clip with J-hook & Long Screw, 1X Phone Clampnote: Please allow 0-1cm error due to manual measurement, make sure you do not mind before you order.Please allow for slight color differences due to different monitor resolutions.