COMPATIBILITY: Compatible with most smartphones Within 1.7 inch/4.4 cm-3.7 inch/9.4 cm Width,Such as iPhone X xs max 8 8plus 7 7plus, Samsung s10+ s10 S9 S8, Huawei p30pro p30 P9 Smartphone,etc; The knob can be moved to fit the phone length and can be rotated to stabilize the phone DUAL HANDHELD GRIP: Simultaneously hold two handles can easily keep the cellphone balace and greatly reduces shake, Comfortable and balanced in your hands; Record every fantastic moment in your life GET LIGHTING AND MICROPHONE ATTACHMENTS: With 2 standard cold shoe mount, you can easily get lighting and microphone attachments. An amazing tool for you to take fantastic or even professional videos(NOTE: Smartphone, led light and microphoen NOT included) WIDE USE: With most 1/4-inch mounting holes on the top for attaching other accessories,such as Magic Arm, LED Lights, Microphone (not included),3 Universal 1/4-inch mounting holes on the bottom for attaching tripod,slider(not included) LIGHTWEIGHT AND STURDY: It is designed to be lightweight, never feel tired even for a-whole-day use