Universal cold shoe adapter compatible with Nikon and Canon flashes Anti-Rotation feature for secure attachment to Boomerang Flash Bracket and PMG Handle Dual mounting options with standard 1/4'-20 screw from top or bottom Includes 1/4-20 Captive Screw and 5/32 allen key for easy installation Durable black anodized aluminum construction for reliable use Designed with Flash Safety Pin hole and Screw Stoppers to prevent accessory slide out