[1]Amazon currently has the K’nex 521 Piece Value Tub marked down from $24.99 to only $15.99 [1], and will ship for FREE with an order over $25 or your Amazon Prime Membership! This set gets 4 out of 5 stars, and looks like a lot of fun!
Here are some more details about this product:
Build anything you can imagine with the 521 Super Value Tub
Loaded with 521 parts for lots of open building fun!
Includes Instructions/ideas for 35 unique models including dragsters, ferris wheels, dinosaurs, creatures & more
Parts and built models can be stored in the convenient storage tub
For ages 7+
Remember that Amazon can change prices at anytime, so make sure to look at the price before adding to your cart!
(Thanks Free Snatcher [2]!)