Harper Trucks 150-25 continuous handle model is designed to handle a medium oxygen and a small acetylene cylinder. Cylinder hold chain and large tool box are standard equipment. Wheel diameter and type - 12-Inch by 1 3/4-Inch semi-pneumatic. Maximum oxygen cylinder diameter - 7 1/2-Inch. Maximum acetylene cylinder diameter - 9 1/4-Inch. Bracket chain height - 24-Inch. Base plate extension - 9-Inch by 18-Inch. 39-Inch high by 25-Inch wide, 40 3/4 lbs. One year warranty, made in America. Since 1953, our mission has been to sell the highest quality products in the market. We have grown from a small, regional metal fabricator to the largest hand truck manufacturer in the world. Through our unmatched service commitments, worldwide distributor network, product guarantees, manufacturing process, and constant innovation we will continue to grow well into the next century.