Compatible Type: Compatible with GoPro HERO 3 4 5 action camera with selfie stick.Function Use: With this phone clip adapter mount, you could mount your cell phone onto most monopod which has a diameter of 20-27mm or 28-30mm, enabling single-handed operation and better live preview experience.Phone Clip Width: It can hold mobile phones with a width of 58-88mm.Made of ABS and metal, sturdy and durable.Small and large lock clips available.