SmallRig Professional Universal Mobile Phone Cage CPU2494 is designed to fit most smartphones in the market. It’s compatible with smartphone width from 63.5mm to 87.5mm. It features a spring-loaded clamp for quick attach/detach of the phone with a greater locking force. The cage comes with multiple 1/4”-20 threaded holes and two cold shoes for attaching an LED light, microphone, tripod, etc. Those 1/4”-20 thread holes with notches could be used to mount a SmallRig Mini Safety NATO Rail for Mobile Phone Cage BUN2395 and the side 1/4”-20 thread holes can be used to attach the SmallRig Mobile Phone Cable Clamp BSC2390 to ensure a tight joint of the cable like a Lightning cable, USB-C cable or an adapter, or attach a SmallRig Aluminum Side Handle for Smartphone Cage HSS2424 for handheld shooting. It comes with a 37mm lens thread mount for attaching 37mm thread lenses. The cage features two holes on the bottom for lanyard attachment. The built-in rubber pads could protect possible scratches to the phone.