Top Mount Ring SS Cup Holder - 2-Drink - Base Mount. Top mount drink holders are great for console and table tops. Our top mount drink holder allows for 1/4" wood screw or bolt to fasten to the console or. table easily. The ring diameter is large enough for a can koozie, bottle of wine, or a mug. The opening in the ring allows for a cup with a handle to. slide in and out easily.. Produced from durable Stainless Steel. Lifetime Guaranty.. Specifications:. Style: 2-Drink. Height: 2-3/4". Ring ID: 3-9/16". Opening: 1-1/8". Fastener: 1/4" - 20. Material: 304 SS