These are the 3-3/4" Diameter Vintage II 1/8 Scale Aircraft Wheels from Williams Brothers Model Products. FEATURES: Black Rubber Tire Vintage Style Wheel Wheel Constructed of Beige Plastic INCLUDES: Two 3-3/4" Vintage II Style Wheels REQUIRES: Installation on landing gear of aircraft SPECS: Inner Diameter: 3.25mm (0.13") Outer Diameter: 94.5mm (3.75") Width: 14mm (0.55") Hole Diameter: 3mm (0.12") JiM 11.26.08 ir/jxs