100 Pack Black 40mm Rear Wheels for Shell Style Co2 Dragsters LAB MICROSCOPE WITH REAL GLASS

LAB MICROSCOPE WITH REAL GLASS OPTICS - Your new kids microscope comes equipped with real glass optics

2 Foam Rockets included

ripple voltage: 1 mV

or bus strips

💰 The jar is clear so that you can watch as your money accumulates

100 Pack Black 40mm Rear Wheels for Shell Style Co2 Dragsters LAB MICROSCOPE WITH REAL GLASS100 Pack black rear wheels with an open axle hole for shell style Co2 dragster cars Each wheel is made of durable polypropylene, constructed in one piece, and features an axle hole that fits a 1 8" diameter axle (axle not included). Note: The axle hole goes all the way through perfect for a shell style dragster where the axle is hidden under the body. 40mm diameter with a surface contact width of approx. 17. 5mm Each wheel weighs approx. 0. 18 ounce