Features: Fits most smartphone models on the market (3.5-6.8 inches), can be used with a case or waterproof case. The product makes it easy to get hands-free video during almost any activity. The headbands are fully adjustable to fit all sizes. No matter what hat size you have, this product fits. Available with skiing, fishing, hiking, cycling, more interesting pictures for you to discover. Easily and stably clip and lock your phone with an adjustable phone clip, a universal adapter to the clip and the chest strap, press the trigger button so you can perform activities. Specifications: Material: ABS Size: approx. 8.3x4.2x3.2cm/3.27x1.65x1.26in Note: No retail package. Please allow 0-1 cm error due to manual measurement. Make sure you don't mind before bidding. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 pc x phone clip 1 pc x head mount strap 1 pack x accessories