Sartek Deep Housing permits the use of your GoPro or Sartek HD Sport Buddy camera to 750'. The housing is machined Delrin with a flat abrasion resistant polycarbonate port. The dimensions are: 3.3" diameter x 3" long with locking latches. The hardware is all stainless steel. The window and back cover are O ring sealed and well as the mounting screws for the latches. Weight 1lb. with the camera installed, bouyancy is -.25lb with the camera installed.  Options include:  clear display back +$100