Description: 100% Brand new and high quality 1/4 ” brass nut in the bottom, suitable for light stands or flash holders with 1/4 ” screw head. Designed with cold foot, support standard hot shoe. Compatible with Canon 580EX II/580EX/550EX/540EZ/430EX II/430EX/420EZ/380EX(Note: It ’s not suitable for other flashes not listed.) Material: Metal and ABS Package Includes: 1x Flash Hot Shoe Mount Adapter