Chest Strap,Andoer 6-in-1 Chest Strap Mount Adjustable Chest Harness Belt with Extendable Phone Clip Replacement for GoPro Hero 10 9 8 7 6 5 4 Session 3+ 3 2 1 Fusion DJI OSMO Cameras Smartphones With Phone Clip

[Wide Application] Freeing your hands, great for outdoor sports, extreme sports, and underwater photography, like cycling, running, climbing, diving, and more, providing first person view camera angle.
[Adjustable Chest Strap] Made from premium polyester material, padded, elastic and breathable, suitable for a wide range of body types; quick release buckle design, easy and comfortable for wearing.
[Extendable Phone Clip and silicone Mat] Adjustable length from 5.8/ 2.2inch to 8.8cm/ 3.4inch, compatible with most smartphones on the market; with silicone mat for fixing the phone more firmly, preventing accidental falling off.
[Lightweight Design] Adding more comfort while not affecting it's performance, nice replacement for GoPro Hero10/9/8/7/6/5/4, Session, 3+/3/2/1, Fusion, DJI OSMO, etc.

Specifications：
Color: Black
Material: Plastic and polyester
Phone Clip Width: 5.8-8.8cm/ 2.2 * 3.4inch
Silicone Mat Size: 11.4 * 5.8cm/ 4.4 * 2.2inch 
Chest Strap: 36 * 34cm/ 14.1 * 13.1inch
Chest Strap Weight: 123g/ 4.3oz

Note：
The sports cameras and smartphones showed in the pictures are not included.

Package List：
1 * Chest Strap 
1 * J-Hook
1 * Thumbscrew
1 * Adapter Screw
1 * Phone Clip
1 * Silicone Mat