GSE Games & Sports Expert Adjustable Folding Cup Holder. Universal Drink Holder for RV, Autos, Boats, Car and Truck (2-Pack Gray) 

GSE Games & Sports Expert gray adjustable folding cup holder is made of corrosion-resistant, abrasion-resistant, and impact-resistant plastic, the maximum unfolded size is 3.75"L x 3.6"W x 3.85"H, and the minimum closed size is about 3.75"L x 3.6"W x 1"H, easy to carry and store. The holder can be adjusted to hold most cups, cans, bottles, used to secure your drink so it won't fall or wobble, preventing clutter of cups and liquid spills, avoiding the inconvenience of searching for a place to put your drink, easily mount on any vertical plane with screws. It is commonly used in boats, cars, RVs, trucks, vans, campers, caravans, yachts, and more.