The tripod screw adapter is easy to install and remove from your equipmentThe 1/4 to 3/8 convert screw are used for different size of ball head, pan head, flash bracket with 3/8inch female thread to connect tripod or monopod with 1/4inch screwThe convert screw is made of strong metal which is durable to use.The tripod screw adapter have Cuts on one end so that you can use a coin to wind up the screwIt is wear-resistant and durableApplicable for ball head, tripod, monopod, DSLR, flash brackets, Lens Plate Button Heads and etcMaterial: MetalColor: silversize:10x8mm Package Contents:5 * convert screw adaptersOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.