Receive the best product from the originator rather than the imitator. My cart bolsters are made entirely in the. From my own patterns and machined by me. Don’t be tempted by a cheap price tag, compare the features and you will realize the difference in quality and value. Quality remains long after price is forgotten. Bolsters are cast iron of universal design, adaptable to your application. Fully machined and painted, ready for use. Axle u-bolts and mounting hardware included. Will accept 3/4″ to 1-1/8″ diameter axles. Instructions include with set. Steering Bolster – 5″ diameter base, 6-1/2″ wide axle mount saddle, two 7/16″ mounting bolts 3-3/4″ apart. Solid bolsters – 3″ tall, 4-1/2″ long mounting base, 1-1/2 thick. Maximum recommended engine weight is 500 pounds. Photo of assembled cart is for reference purposes to show one possibility of a finished cart; wheels, rails, engine, etc.