"Heavy-duty, welded steel construction for use in permanent applications. Painted blue finish with warning/operating stickers 4 swivel phenolic casters with 4-way position locks. Complies with applicable CMAA and ANSI specifications. Gantry crane is NOT to be moved while loaded. Trolley and hoist not included. U.S.A. Note Inspect frequently to insure safe operation final testing and inspection is the user's responsibility after final assembly has been completed. I-Beam Length ft. 10, I-Beam to Ground in. 120, Load Capacity lbs. 4,000, I-Beam H x W in. 8 x 6. Complies with applicable CMAA and ANSI specifications Designed for transporting and positioning materials along the beam length Solid steel construction will provide years of service Large 8in. dia., 4-position locking swivel casters with roller bearings will facilitate easy mobility from one area to another Do not move units while loaded More economical and flexible than permanent cranes Features quick setup design Painted blue finish Will accomodate many different brands and styles of hoists and trolleys sold separately Base width 64 1/2in., overall beam length/height 10in./8in., flange width 6in., under I-beam to ground 10ft. Usable length 9ft."