Below are the available bulk discount rates for each individual item when you purchase a certain amount
New lightweight wheels for those projects, like a solar vehicle, where reduced weight and friction are important. __§The 2-1/2" wheels weigh in at 2.9 grams without the adapters, fit on a 3mm axle or by using the adapters they can fit on a 2mm or 1/8" axle.__§ Lightweight and versatile, perfect for problem solving activities requiring the use of wheeled vehicles. 2/pkg. 2-1/2" diameter.