Tether Tools X Lock Mountable Protective Case for iPad 2/3/4, Black Tether Tools X Lock Mountable Protective Case - Tether Tools Warranty Simply plug any X Lock compatible accessory into the patented "X" mounting receptor for a versatile iPad 2/3/4 configuration that fits just about any situation Using accessories is easy. All mounts come with a locking X attachment which inserts into the X Lock iPad 2/3/4 Case. Insert the accessory's X into the X Lock iPad 2/3/4 case and turn The slight rotation locks the iPad into position; rotate another 90 degrees to switch from portrait to landscape viewing. Turn another 45 degrees and the iPad 2/3/4 releases along with the protective X Lock case