Investigate and experiment with 6 functioning gear models designed to demonstrate science and technology concepts. Students can visibly investigate gearing up and gearing down, increasing speed and increasing force as they experiment with the crank fan and egg beater models. Build 6 different real-world models, one at a time. Models demonstrate 2 spur gear examples, 2 crown gear examples and 2 sprocket gear examples. Set includes building instructions with real-life photo and key facts and comes packaged in a strong plastic storage case with moveable dividers. · 198 K'NEX Pieces · K'NEX Education branded · Create replicas of real gears & cranks · Storage container with dividers Availability: Usually ships the next business day. 78632 FREE GROUND SHIPPING ON ALL ORDERS OVER $75.00. Please entry FREESHIPPING in the coupon box on the second page of the checkout. Offer valid for the 48 contiguous states. Certain oversize and drop ship items are excluded.