Abstract: This rail mate is designed to clamp onto a boat handrail and hold food and drink while a fisherman concentrates on fishing, and the device will keep a beverage cold or hot for a long period of time. The device utilizes a main body having a clamp frame that fits over a boat rail and a pair of clamp members within the clamp frame engage with the handrail, and tightening of the clamp members to hold the main body secured to the handrail is effected by a clamp screw and rod that are rotated. Provision is also made for the clamp frame to engage with a rectangular boat rail by the removal of the pair of clamp members, the clamp screw, and the rod thereof.