Digital Absolute + Axis Goniometer (Built In) Plaster Splints Replacement Shower Chair Commode Seat MSHQ 1594XL Replacement Shower Chair Commode Seat Specifications: *Deluxe Elongated Soft Seat *Open Front *Box: 21 x 19 x 4 *Weight: 6 lbs 5V T1 1 2 Halogen bulb *PHYSICAL CHARACTERISTICS * Shape: T1 1 2 * Ends: SINGLE ENDED * Diameter (mm ): 0 The integral absolute vertical and horizontal levels are permanently incorporated into the digital goniometer arm * Goniometer reads 0 180 degrees on LCD screen * Has ability to freeze angle measurement * Powered by 1 9V battery * Goniometer exterior is powder coated steel with inch cm marks screened onto arms * Digital angle reached in center * Horizontal and vertical levels to indicate level or plumb starting point *