Maximum capacity: 2204 lbs Keel roller size: 3.19x7.09" size 43.30 length ,height adjustable 8.26-16.93inch With this boat support bracket with keel rollers a boat can be optimally supported. The 43.30" long bracket is installed on a boat trailer and safely supports the keel of the boat. Due to the adjustable width of the bracket, boats with a width between 24.61 and 40.60inch can be held. This makes the holder suitable for smaller and bigger boats. The support bracket is made of high-quality galvanised steel and has a maximum load capacity of 2204lbs. With Super-Heavy-Duty Rubber keel rollers for boats,helps to absorb road shock while boat is being towed