Made by Diecast Masters this 1/50 scale Western Star 49X SB Tridem is paired with XL 120 HDG Trailer W/ Single & Tandem Axle Boosters. Constructed from diecast metal with some plastic parts and rubber wheels. Accurate tire tread and rim detail. Steerable and authentic rolling wheels. Approximate dimensions: 19.5in L x 2.5in W x 2.75in H. Manufacture recommended age 14+ years, not recommended for play.