Features: -The Aluminum Half Ball Flat Bowl Riser is designed to raise professional camera systems 5.3 inch above your standard tripod height. -This riser is intended for tripods with bowl systems, the max load is 10kg. -This clever device will help innovate and integrate your fluid tripod head to different positions. -Mount it to a slider dolly to raise head and camera to allow tripod operation and easy level adjustments. -The bowl riser features multiple 1/4 inch and 3/8 inch threaded holes on each side to add additional accessories,such as magic arm,monitor,led light,microphone,etc. -The included three screws insure that your camera is secure and shake free. Specification: Material: Aluminium alloy N/W :486g (about 1 lbs) Max load: 10kg (about 22lbs) Heighth:137mm /5.39 inch Width:120mm/4.72 inch Inside width: 102mm/4.02 inch Inside heighth: 120mm/4.72 inch (Max) Inside heighth: 94mm/3.70 inch (Min) Compatiable with bowl diameter 100mm Package: 100mm Bowl Riser x1 Screws x5 Wrench x1