This cup holder is equipped with a 360 adjustable high-quality aluminum mounting clip and fixing screws, which are firmly clamped on the guide rails of your boat and side table, with impressive grip, won’t slip, fix your drinks and cups. Easy to install and use. Made of 600 Denier oxford cloth, durable and washable. The inner layer of the cup holder is made of thermal insulation material, which is conducive to long-term thermal insulation or cold preservation. With tightening drawstring-adjustable drawstring design, fit for most kinds of cups and water bottles. Suitable for bicycles, car, motorcycles, stroller, scooters, wheelchairs, golf carts, beach chairs, etc. Price for 3,000 pcs and over is for sea shipment. We will always online.