Description: 3/8"-16 Female to 1/4"-20 Male Tripod Adapter. Use to convert a 1/4"-20 threaded post to a 3/8"-16 or to convert a 3/8"-16 thread socket to a 1/4"-20. Brand new and high quality. Size: 1.18*1.18*0.98inch Specification: Material: ABS Size: 3*3*2.5cm/1.18*1.18*0.98inch Package Includes: 1Piece Tripod Mount Screw