The SeaSense Drink Holder folds out of the way when not in use. The drink holder is made of reinforced nylon and comes with stainless steel mounting screws.• Features pop-up adjustable arms• Folds up when not in use• Includes stainless steel mounting screws• Expands from 2.25" dia. to 3.5" dia. Made of reinforced nylon Includes stainless steel mounting screws | Seasense Collapsible Drink Holder, Grey