Large Plastic Toy Project Wheels and Axles, for Mousetrap Car and Rubber Band Car Projects, 20 Wheels, 20 Rubber Bands, 10 Dowels

• Ideal for science and engineering projects, these wheels are designed to make your rubber band-powered vehicles and mousetrap cars perform the way you expect.
• The wheel axle hole has 4 teeth to grip the included 6 x 1/4" dowels, preventing slippage. Rubber bands add traction to the outer wheel. Extra dowels and rubber bands included.
• Easy to work with! If you have built a car project with CDs for wheels, you know what a hassle that is. These wheels fit snugly onto sturdy wooden dowels.
• Wheels measure 4.75 inches in diameter and ¼ inches wide tread, axle hole inner diameter is ¼ inch, the dowels are ¼ by 6 inches, the rubber bands are 1/8 by 3.5 inches.
• Made of sturdy, safe, reusable, and recyclable polypropylene plastic.

The right wheels are the most crucial part of vehicles projects for kids and classes. Plastic bottle caps are too small, and CDs are difficult to attach to an axle. These project wheels are designed specifically for educators, parents, and makers who want to build vehicles that work the way you expect. The 4.75-inch wheel diameter helps your projects go the distance, and the included rubber bands improve traction so no energy is wasted due to low-friction contact with the ground. 10 dowels made to fit onto the wheels are included.