This adapter set can be attached to a range of different photography accessories, such as umbrella holder swivel light stand. Made of premium metal material, it is durable and practical. It is a handy tool screw for your photography setup. Features - ColorAssorted Color - Material: Metal. - 1/4"Female-3/8"Female spigot adapter: - Adapter Size (diameter x Length): 15.5mmx28mm. - One side: 1/4" thread, the other side: 3/8" thread. - 1/4"male-3/8"male screw adapter: - Adapter Size (diameter x Length): 16mmx19mm. - One side: 1/4" thread, the other side: 3/8" thread. - 1/4"Female-3/8"male screw adapter: - Male thread (outside): 3/8". - Female thread (inside): 1/4". - This adapter set can be attached to a range of different photography accessories, such as Umbrella Holder Swivel Light Stand. - It is a handy tool screw for your photography setup. - Made of premium metal material, it is durable and practical. - Perfect camera tripod mount accessories. Package list: 6 x lamp holder screws 6 x 1/4 turn 3/8 double head screws 6 x conversion nuts