Features: Standard 1/4 3/8 male to male camera screws, about 68mm/2.67 length and diameter is 18mm/0.70". Made of metal material, smooth surface, strong and beautiful, abrasion resistance and corrosion resistance, not easy to rust. CNC machining, finely trimmed without burrs, which can increase friction and make it easier for you to twist the screw. Wide applications, can be used to connect with light stand, hotshoe/cold-shoe adapter, ball heads, triggers, and more. A versatile handy screw tool for photography, with smooth thread, makes it easy to install and remove. Specifications: Material: Metal Material Type: Iron, Aluminum(optional) Screw Interface: 1/4-20 & 3/8-16 Uses: for Studio Light Stand, Wireless Flash Receiver, Trigger, Hotshoe/Coldshoe Adapter, Ball for Head etc Package Includes: 2 Pieces 1/4 3/8 Male to Male Adapter Screws note: Please allow 1-2cm errors due to manual measurement,pls make sure that you do not mind before you mind. Due to the difference between different monitors, the picture may not reflect the actual color of the item.