The Intova BTS Base Tray with Single Handle features a foam rubber grip and an adjustable base with included hex tool. The width adjusts from 3-1/2 inches to 5-1/2 inches. The overall width is 6-1/2 inches to 8-1/2 inches. The grip height is 5-1/4 inches. Allows for better balance when using an underwater camera, housing and external strobe. Accepts Intova and other brand accessories. Please click on the "more images" link for more detail and a sample setup.