Item Type: 1/4in Female to 3/8in Male Screw Adapter Material: Aluminum Package List 3 x 1/4in Female to 3/8in Male Screw Adapter 1Professional Screw Adapter: There is a standard cold shoe mount at the bottom to attach to most DSLRs, professional design for stable performance and high efficiency. 21/4in Internal Thread: There is a standard 1/4in screw hole at the bottom, suitable for sports digital cameras, LED video lights, flashes and other equipment to meet your demands. 33/8in External Thread: There is a 3/8in screw head on the top, which is suitable for connecting the pan tilt, telescope and much more, after strict quality testing for secure using. 4Small and Lightweight: Heavy duty 1/4in female to 3/8in male screw adapter is easy to use and carry. Fits different tripod legs and heads. 3 in total, enough for you to replace. 5Durable Construction: The 1/4in female to 3/8in male thread adapter is exquisitely made of high quality aluminum material with sturdy structure, more durable, convenient and practical