RAM Mount Level Cup XL w/Single Socket for B Size 1" Ball [RAP-B-417-200-1U] Engine Parts & Service | Fuel Hose & Fittings and when flush-mounted with most

and when flush-mounted with most fibreglass hulls

so it's totally submerged in the water you're fishing

Nominal Diameter:9/16" (14mm)

and looks great on the helm of any boat

Open Flow (CFM): 105 CFM

RAM Mount Level Cup XL w/Single Socket for B Size 1" Ball [RAP-B-417-200-1U] Engine Parts & Service | Fuel Hose & Fittings and when flush-mounted with mostLevel Cup XL w Single Socket for B Size 1" Ball Designed for bigger insulated cups, plastic water bottles or even your reliable steel coffee cup, the Level Cup XL keeps your drink upright, regardless of the conditions. This kit includes a Level Cup XL that has an integrated single socket arm. This cup holder can attach to any B size base or RAM Mounts B size ball accessory. The oversized opening cradles the biggest of gulps and the adjustable bottom