Multicart Rock N Roller MultiCart R12 All Terrain Transporter with Molded Rear Wheels, Load capacity: 500 lbs./32 cu. ft. The professional equipment cart that transforms into any of 8 configurations in seconds! Professional musicians and bands tour with Multicart because they know there is no more versatile or efficient way to move equipment. Use it to move your photo gear and you'll be singing its praises too. Multicart's R12 All Terrain model expands from 34" to 52" length with 32"/32" (front/rear) foldable sides. 10"x 2.5" Molded rear wheels and 8" x 2.5" front swivel casters.