Amazon has Thames & Kosmos Remote Control Machines: Farm Science Experiment Kit on sale for $35.35
Shipping is free w/Prime
Construct four models of realistic farm equipment and four models of special attachments for them.
New multi-channel radio frequency remote improves range.
Gain engineering design experience and learn about physics and simple machines and other scientific concepts related to farming.
64-Page, full-color experiment manual with step-by-step assembly instructions.
A Parents’ Choice Silver honor award Winner