Cage Style Combination Smart Phone and Adjustable Drink Holder Smart Phone Cage is mounted on the left side of the drink holder Holds Smart Phones (SmartPhone Cage measures 3.7" long X .77" wide X 4.75" deep.) as well as mugs, canned drinks with insulated sleeves, 20 oz plastic soft drink bottles, and 12 oz cans. Drink Holder adjusts to hold beverages up to 3.625" (3 5/8") in diameter. Deep pocket ensures the phone never falls out. Mounts under armrest utilizing SnapIt! System mounting arm - Installation instructions Mounting arm attaches with screws to the underside of armrest chair. Bracket is specific to mobility device. Screw holes are pre-existing in armrest. Please go to Additional Brackets to see more detailed information regarding the available mounting brackets. The information there will help you determine which bracket will correctly fit your powerchair. Once you have determined the correct bracket return here and select it from the Chair Model menu. One bracket is included in the cost of the accessory. If you have questions about the correct bracket for your chair please contact us for further information SnapIt! Mobility Accessories are CNC machined from marine-grade plastics and assembled with stainless steel hardware Proudly manufactured in Texas, USA!