Vestil Aluminum & Steel Convertible Hand Trucks, models CAHT-500, DSHT-500-PN, & CSHT-500 are versatile wonders. Units work in both the vertical and horizontal positions. The task of transporting smaller crates or long narrow boxes is now simplified. These carts roll smoothly on 10" x 3½" rigid pneumatic and 4" x 1" swivel solid rubber casters. Ships knocked down.