Brownell Adjustable Boat Dollies are heavy duty and designed for use in showrooms, workshops, boat shows and even production facilities. They feature non-marking wheels and Brownell's legendary adjustable screw pads – just like the ones used on the Brownell Boat Stands.The BD1G Maxi Heavy Duty Boat Dolly is a low-profile dolly with a hot dip galvanized finish. The frame is 29" x 46" and one pair can accommodate boats up to 20,000 pounds. They can also be linked together. This dolly features an adjustable height of 55"-91" and an adjustable width of 35 1/2" - 43 1/2". It also has 8" x 2" phenolic wheels with brakes and casters.Brownell's Adjustable Boat Dollies work with Brownell's top of the line products to create an unbeatable combination to protect and support your vessel.