Features: POV perspective neck bracket, immersive record, release your hands, widely used for skiing, surfing, skateboarding, fishing, and more. Silicone material, soft and skin friendly, stable and anti slip. The inner side is made of stainless steel neck tube and aluminum strip material, which can be freely bend, comfortable to wear. Quick installation design, efficient disassembly and easy operation. Four way installation of the quick installation board, with free switching between horizontal and vertical. Multiple interfaces, widely adaptable, chest strap fixation, stable motion shootings. Specifications: Main Materials: silicone, stainless steel, aluminum, PC+PBT Color: Gray+Black Size: Approx, 585x10x15mm/23x0.39x0.59inch Load Bearing: 300g Applicable Temperature: -10~40 Adapted Product: for Hero11 10 9 8 7 6 5/360X2 360X3 etc sports cameras; mobile phone (requires additional phone holder, not included) Note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution. Package includes: 1x Neck Bracket 1x Sports Camera Quick Assembly Plate 1x Knob 1x 1/4 Quick Mount Plate 1x Chest Strap 1x Instruction Manual