Proflow heavy-duty engine cradles will store, transport, and allow you to work more conveniently on your engines. Manufactured from thick 40mm square tubing, these cradles are given a black powdercoated finish to ward off rust and corrosion. The cradles include Grade 5 fasteners and 4" Heavy Duty Cast Iron Wheels with 1/2 in. studs.Simply disassemble and store the cradles to free up floor space in your garage or shop. Make things easier with Proflow's heavy-duty engine cradles standard equipment in your workshop. Also great for engine builders to freight complete built motors to customers!