2PCS Universal Adjustable Folding Cup Holders Black Car Drink Holders Waterproof Plastic Containers Portable 7.5 CM Diameter for Car Truck Boat Van

Adjustable retaining arms, can hold cans, cups, and bottles up to 75 mm in diameter. Constructed from high-quality, stabilized plastic. Installation: Includes stainless steel screws. Mounts to any flat, vertical surface. Folds flat to protrude only 28 mm when closed and 100 mm when open. It is often used in cars, RVs, boats, yachts, and other locations, and can also be installed in wheelchairs, trolleys, and other places.