Finally!  An easy and safe way to mount your screen devices in the backseat of your Tesla Model 3 / Y.  This tablet mounting bracket secures to the rear side of the front seats providing the proper viewing angle for back seat passengers.   The mount works with any tablet device, up to 11" iPad Pro or equivalent.   The securing clamps are spring loaded, opening to fit the device then clamping on the edges.  The mounting bracket is overlayed with protective polymer coating to prevent scratches to the screen device or your Tesla.   The bracket folds up nicely to keep it tucked out of the way when not in use.  Made from injection molded ABS plastic, the device is secure but not bolted on rigid so expect some minor movement when transversing things like speed bumps.