Description: Converts a 5/8 Inch?16mm? Stud to a 17mm Long 1/4 Inch Thread Fits for Light Stand / Speedlight This baby 5/8 (16mm) receiver quickly attaches to any of the mounting locations on either the 3 Way Clamp (KG900412) or 4 Way Clamp (KG900712) to accept any light fixture or accessory with a baby (5/8 - 16mm) stud. All accessories for the 3 4 Way Clamp System have a proprietary notch that slides into one of the mounting locations and then is secured by turning the locking collar. color: black; length: 2 in. material: aluminum Specification: Color: black Size: 52*47*24mm/2*1.85*0.94inch Material: aluminum Package Includes: 1Piece Rapid Adapter