Wheelchair Rail - Tube Mount with Extension & Tablet Holder for Apple iPad Pro 11" (2020) (sku 54056)This Mount features a U Bolt with 1. 5" Rubber Ball, a Standard Double Socket Arm 1. 5", a Double 1. 5" Ball Adapter, a Double Socket Swivel Arm with hinge for 1. 5" Ball to 1" Ball together with a Tablet Holder for an iPad Air in a case, skin or sleeve The spring loaded tablet holder design makes it easy to load and unload a tablet in a case, skin or sleeve along with keeping it secure while on the go Cup ends are designed to optimize the