Design: The J-shaped base is stable and firm, so the camera can be placed on it for shooting. The photo taken with the chest strap mount is displayed in the first-person perspective, which is different from the conventional perspective with better effect. Rotatable phone clip: mobile phone clips can be adjusted within a wide range of 145, convenient for outdoor shooting, flexible multi-angle rotation and horizontal and vertical shooting so that shooting could be more diverse. Material: Made of high quality ABS material, firm and durable, provides longer service life. High elastic, strong and wear-resistant chest strap, can be adjusted flexibly to meet your different needs. Wear adjustment: five-segment adjustment buckle, adjustable length, suitable for all adult sizes, even if a thicker winter down jacket does not affect the wearing. The buckle is designed at the waist for quick plug and play, safe and reliable, easy to wear. Usage Scenario: The range of phone clips is 6cm/2.4-10cm/3.9inch, and can fit most mobile phones in the market. Suitable for skateboarding, inline skating, cycling, climbing, hiking, skiing, diving, boating and other adventure activities.