Engine Cradles are available in Standard Duty or Heavy Duty, both with provisions for mounting wheels. Made of 1" square tubing and black powder coated. Stands include Grade 5 fasteners and may be easily disassembled for storage. Standard Duty cradles accept wheel kits with 3/8" studs. Heavy Duty cradles accept wheel kits with 1/2" studs. Wheel kits sold separately.