PREMIUM WHEEL DESIGN Introducing the DU-BRO DUB225R Low Bounce Smooth Wheels in a convenient 2-1/4 size. This quality set is ideal for a variety of aircraft models, including Trainer, Sport, Scale, and Pattern designs. KEY FEATURES FOR SUPERIOR PERFORMANCE These wheels feature low bounce, non-treaded rubber tires, allowing for smoother landings, and are equipped with durable nylon hubs that ensure longer wear. PACKAGE CONTENTS Each package includes two Low Bounce Smooth Wheels, each measuring 2-1/4. TECHNICAL SPECIFICATIONS - Width: 3/4 (20mm) - Weight per Wheel: 1.5 ounces (41 grams) - Center Hole Diameter: 1/8 (4mm) - Outside Diameter: 2-1/4 (57mm) ADDITIONAL INFORMATION The hubs are designed to fit 5/32 axles, and can be drilled out to accommodate 3/16 axles at maximum. Experience the smooth performance and reliability of DU-BRO wheels as you elevate your model aircraft projects to new heights.