Purdue Pegboard Test Commodes Shower Chairs With Flip Back Detachable Full Jobst Ultrasheer 30 40 ThighHi With Flip Back Detachable Full Arms * Built in seat rail extension and extendable upholstery easily adjusts seat depth to 16 or 18 * Attendant wheel locks in a convenient and easily accessible location * Spreader bar acts as a back stabilizer and a convenient push handle for the attendant unit for easy handling * Simple Easy 2 button operation * Flexible Uses 4 1 Aids in the selection of employees for various types of manual labor by measuring dexterity for two types of activity gross movements of hands fingers and arms and fingertip dexterity as necessary in assembly tasks * Comes complete with pins collars and washers and an examiner's manual with norms * Developed by Joseph Tiffin Ph