Fold-Up Drink Holder – Dual Ring – White Holds coffee mugs with a handle, 12-ounce cans, or drink insulators. Mount quickly and easily on boats or RVs. Flip the small ring up to hold small drinks; for large drinks, flip the small ring down and use the large ring. When not in use, flip rings down and close the cover for convenient storage. 7/8″ closed depth. Four holes for #10 screws.