【Dual Stage Lock】 Strong, secure mounting mechanism Built-in magnetic attachment and lock technology is ultra secure.The dual-stage lock means that your iPhone will stay secure, no matter how fast you walk. Hold your phone during even the bumpiest of rides 【Quick & Easy to attach/detach 】 The simple twist and lock makes it easy to attach / detach your iPhone. Attachment/detachment is instant and 1-handed.

【Anti-skid】 The thickened foam inside and the anti-slip silicone strip on the outside increase the friction between the bracket and the backpack strap to avoid slipping.

【Holds phone in portrait or landscape mode】 The phone instantly becomes a sports camera by gently flipping.Then you can enjoy outdoor shooting freely, retaining the beautiful moment.