Clamp-On Drink Holder - Single - White PolyEdson's White Poly Base Stainless Drink Holder will add an elegant touch to your boat! It has the ability to clamp-on to 1, 1-1/8 and 1-1/4 pipes. With the right amount of space for any drink that can fit inside of a koozie, each drink holder is designed to keep your cup, bottle or favorite coffee mug in place! Features:Clamp-on to 1, 1-1/8 and 1-1/4 pipes