Professional Cup Holder: The cup holder is made of thicker, anti-rust colored anodic oxidation aluminum, features a long lip; anti-corrosion; smooth edges; resistant to damage and deformation, sturdy enough for long-term use Cup Holder Size: The cup holder features rounded edges; measures 4" OD x 3.25" ID x 3" H; the cup holder fits most standard-size bottles with a diameter of 3.25" or less, can also be used to hold your personal belongings Anti-Spill Cup Holder: The cup holder can protect your table from water spills; it can be permanently mounted to the table or removed as needed Important Tip: The cup hole for your table should be between 3.35" and 3.5" in diameter; we recommend to wait until you receiving the cup holder before drilling your mounting holes Applicable: The cup holder can hold cans, beer and water bottles; it can be installed almost anywhere, poker tables, casino game tables, shelves, boats, beach tables, RVs, cars, trucks, benches, etc The cup holder is made from colored anodic oxidation aluminum, designed with a long lip, no sharp edges, non-fading, durable and rust-proof. It can prevent drinks from leaking out and spilling onto your tabletop. It fits any drink with a diameter of 3.25" or less, such as cans, beer, water bottles, and some small stainless steel water flasks. This cup holder is great for poker and board game tables, custom shelves, boats, custom beach tables, RVs, cars, trucks, benches, couches, etc.