Material : Aluminum alloy with siliconeThis versatile rig features both a 1/4 and a 3/8 screw hole, along with two cold shoe mounts, making it ideal for use with action cameras, LED lights, and various other accessories. The dual cold shoe mounts are perfect for attaching underwater LED flashlights (available for separate purchase), microphones, and screen monitors, allowing for enhanced functionality during your shoots. Additionally, the rig comes with an anti-loss lanyard or wrist strap that securely attaches to the setup, providing extra safety and peace of mind by preventing accidental drops, ensuring your equipment stays secure in any shooting environment.Note: There might be an error of 1-3 cm due to manual measurement, and slight color differences may occur as a result of varying lighting and monitor effects.