High Quality - This flash stand adapter is expertly crafted from aluminum alloy with a surface coating, offering wear resistance and anti-oxidation for durability. Its robust metal construction ensures long and reliable daily use, a superior alternative to cheap plastic adapters. Easy to Use - The package includes 2 1/4 external thread adapters to 3/8. Simple assembly and disassembly by hand. Informative Surface - The wheel surface provides excellent grip for easy installation and removal. It's non-slip, complete, and deep without borders, practical for installation, stable, and waterproof. An excellent unit for any photographer. Multifunction - The sockets can connect to a variety of photography accessories, such as studio light stands, hot/cold shoe adapters, ball heads, etc. Note: All data is measured manually. Please allow for a 1 to 3 cm error due to light and display differences. There may be color variations; please refer to the actual received item.