1、Stainless Steel Material: Made of 316 marine grade stainless steel construction, this cup holder features excellent rust and oxidation resistance, perfect for harsh marine environments. 2、Secure Structure: This triple ring cup holder keeps your cup stable and protect your drink from spills during driving, featuring sturdy construction, convenient to get the cup. 3、Universal Compatibility: This cup drink holder perfectly fits cups, cans, and bottles with a diameter up to 91mm, suitable for various sizes of beverage for daily use. 4、Elegant Design: This stainless steel cup drink holder features an open frame for coffee cup handles, also features polished finish to enhance the overall aesthetics for your boat. 5、Versatile Application: The open design cup drink holder is ideal for boats, yachts, trucks, cars, apartments, and RVs to hold bottles and cups of different sizes.