Docktail Pontoon Cup Holder - Cup Holder & Storage Caddy for 1 1/4" Rails Keep drinks and essentials right where you want them. The Docktail Pontoon Caddy clamps securely to 1 1/4" pontoon rails and works on open rails or where fencing meets the underside of the rail. Perfect for boarding and exit doors, ladder tops, and rails near the helm or seating areas. Dimensions: 18" L x 5" W x 7" H a Weight: 5 lbs Key Features Fits 12 oz cans and bottles, plus Tervis, YETI, RTIC, and Ozark Trail tumblers up to 30 oz, and mugs with handles Enclosed center compartment with drainage holes for phones, sunglasses, sunscreen, and other small items Built from 3/8" King Starboard with stainless steel fasteners for true marine-grade durability Clamps directly onto 1 1/4" pontoon rails-no tools required, just tighten the knobs