K’nex Thrill Rides-Krakens Revenge Roller Coaster Building Set $27.20 Like New Item will come in original packaging. Packaging will be damaged. [amazon template=image&asin=B076CBKPXT] Set comes with 568 classic K’NEX pieces to build your very own coaster. Set includes a battery-powered motor that gives life to the K’NEX pieces. Requires 2 “AA” batteries, not included. Set comes with an easy-to-follow instruction manual. Ideal for kids 9 and up. Price history (new):  Read more, including price history ->

K’nex Mighty Makers, Fun On The Ferris Wheel Building Set $13.14 Very Good Item will come in original packaging. Packaging will be damaged. [amazon template=image&asin=B00V5Y9YHA] Includes 324 K’NEX parts and pieces plus Mighty Makers figures and accessories Includes instructions for three different engineering themed builds Accessories include Ferris wheel seats, stars, graphic panels and more Mighty Makers Card challenges builder to explore mechanical enginerring and STEM concepts Recommended for ages 7+ Price history (new):Read more, including price history ->