Description: Brand new and high quality precision cut aluminium Allows devices with standard 1/4" screw hole to be installed on flash hot shoe slot. Mount microphone, GPS or another camera onto your digital camera. Include 2 nuts which can be adjusted. Compatible with Nikon SC-28 TTL cord, YongNuo CTR-301P flash trigger, 1/4'' tripod socket DSRLs, etc. Specification: Material: alloy Size: 2.5*2.5cm/1*1inch Package Includes: 1Piece 1/4" - 20 tripod screw to flash hot shoe adapter