Mitchell Industrial Dolly Innovations (MIDI) is a family-owned hand truck and cart manufacturing business throughout North America. We are proud to be manufacturing in the USA and have some of the highest standards in the industry while supplying low-cost hand trucks and carts to a wide range of industries. MIDI stair walking hand trucks were invented in 2006 from 30 years of working in stairs/steps conditions in the moving and delivery industry. From many back injuries and the difficult task of moving large items up and down stairs, the M1 was born. Our Products: M1 Stair Walking Box Dolly M2 Stair Walking 3 in 1 Dolly M3 Stair Walking Appliance Dolly M4 Stair Walking Bottle Dolly M6 Stone Cart (Best Selling Product) RF1 Box Dolly Retrofit What makes MIDI stair walking hand trucks and carts more innovative than the traditional stair climbing hand trucks and carts is that our hand trucks and carts go over the entire riser of the step which gives them the walking ability. In contrast, the traditional hand truck has to be pulled up the riser of the step. This is what causes tremendous pulling and strain on the back and body. Our hand trucks and carts reduce accidents, property damage, and back injuries, and increase efficiency. We offer a variety of customized products for all types of industries and provide competitive pricing on all of our products. Our engineers are attentive and experienced in designing, and engineering, and can help you solve problems and answer questions during the process. Customer satisfaction is our priority and we want you to be completely satisfied with your product(s). Have got any questions? We will love to assist you. Give us a call or send an email 512-696-5846 [email protected]