Features: 1.Secure and Stable: Anti collision rubber sleeve prevents slipping or tipping over. Stable grip in rough waters. Ensures cup and glass security. 2.Premium Material: High grade 316 stainless steel, and can withstand the harsh marine environment, damage resistance, with a long term durability. 3.Space Saving Design: This cup holder is designed to be compact and space saving, allowing you to maximize your available space. 4.Wide Compatibility: Accommodates most standard sized cups, glasses, and cans. Maximum diameter of 79mm, perfect to meet your needs. 5.Easy to Clean: The stainless steel material is easy to clean and maintain. Simply wipe it down with a damp cloth or sponge to remove any dirt or stains. Specification: Item Type: Boat Cup Holder Material: 316 Stainless Steel, rubber Maximum Diameter of Cup: Approx. 79mm/3.11in