Description: Photo studio universal cantilever wheel light stand grip clamp. This high quality grip helper adds versatility to any light stand. To connect an umbrella, stud, boom arm, flag, or gobo while mounted to stand. Made of metal, dyrable and steady. Easy installation and removal. Specification: Material: Metal Size: 120x110x75mm/4.7x4.3x2.9" Package Includes: 1 Piece Single Wheel Adapter