Indulward 304 Stainless Marine Foldable Cup Holder for Boat, Adjustable Arms Fit 2.3"-3.5" Cups, Marine Grade Folding Drink Holder with Silicone Grip for Boat, RV, Yacht & Truck (1 Pack)

["Marine-Grade 304 Stainless Steel: Crafted from premium polished 304 stainless steel for superior saltwater corrosion resistance. Outperforms standard plastic alternatives, delivering long-lasting rust-resistant, heavy-duty performance for your boat or yacht.","Adjustable Arms for Universal Fit: Manually adjustable arms expand from 2.3\" to 3.5\" inner diameter. Securely holds 12oz cans, 32oz insulated flasks, and standard coffee mugs. Integrated silicone grips prevent slipping and reduce noise on rough waters.","Space-Saving Foldable Design: Folds flat to just 1\" thickness when not in use, saves over 50% more space compared to fixed non-folding cup holders. The quick-release latch allows for easy one-handed deployment, ideal for compact boat consoles, RVs, and car dashboards.","No-Slip & Anti-Vibration Stability: Features an inner foam coaster and silicone-molded arms that dampen vibrations. Keeps drinks stable and quiet during high-speed transit, eliminating annoying metallic clattering while driving or sailing.","Easy Installation with Included Hardware: Includes 1 cup holder and matching 304 stainless steel mounting screws. Easily mounts to any flat vertical or horizontal surface, such as boat gunnels, countertops, or railings."]