Feature: 1/4in screw hole center design, can connect magic arm to expand more equipment, 1/4in screw hole at the bottom expand tripod and other equipment. Three‑heads cold shoe expansion bracket, which can be connected to microphones, fill lights and other equipment. Using aviation aluminum, CNC precise processing, surface anodizing treatment, hollow design, light and portable, strong and durable. Professional manufacturing, stable performance and high reliability. The screw has three positioning and pattern design, non‑slip fixing, increases the feel and better locking the bracket.