Industrial Gantry Crane AHS-6-10-12 is designed to be portable and offer more flexibility than permanent cranes. I-beam mounting plate design offers quick set-up. Heavy duty steel construction with chip-resistant enamel finish is ideal for warehouse or machine shop, indoor or outdoor. Four 8" phenolic wheel 4-position swivel lock casters ease movement between work areas. Telescopes in 6" height increments using forklift or with optional lever ratchets for one-person adjustment. Note: Use Crane to Lift Loads only.