Durable Construction: Solid stainless steel resists salt air, humidity, and spilled drinks without pitting or corroding—keeping that clean, polished look on your boat or RV for years; Unlike other plastic cup holders, it doesn't yellow or crack
Product Dimensions: The diameter outside lip to lip is 4.13"/10.5cm,and the height is 3.43"/8.7cm. The diameter inside is 3.35"/8.5cm. Suitable for mobile phone and any drink 3.35"/8.5cm in diameter or less. Please check the size before purchasing
Flush Mount Design: The thin lip sits nearly flat against your mounting surface with no sharp edges or bulky rims. Drill your cutout, drop boat cup holder in, and it looks like part of the original build—not an afterthought
Easy installation: Caravan drink holder is easy to operate, can be directly placed in the cup holder, chair back or desktop use. Especially suitable for use on boats, RVs and motorhomes; One cup holder that works everywhere you need it
Other Features: Package includes - The package comes with 2pcs drop-in cup drink holder; At 87mm deep, this cup holder cradles standard cans, bottles, and insulated tumblers securely, even when the boat leans hard into a turn