Investigate and experiment with 7 functioning Wheel & Axle and Inclined Plane models designed to demonstrate science and technology concepts. Students can determine, through investigation, if the machine multiplies the force it applies to the resistance (load), if the machine changes the direction of the force it applies, and more. Build 7 different real-world models, one at a time. Includes building instructions with real-life photos and key facts and comes packaged in a strong plastic storage case with moveable dividers. Availability: Usually ships the next business day. 78622 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.