Knex Value Tub 400 pieces is on sale on Amazon for $ 10.97 + free super saver shipping.
Loaded with 400 parts, including bricks, for lots of open-ended fun and endless building and play opportunities! Includes instructions and ideas for 20 models or use your imagination to dream up your own creations. The convenient storage tub means there is always a place to put your parts or take the fun with you wherever you go! Plus the parts and the tub are all made in the USA. For ages 7+.
Note: This is an Amazon Deal, prices change frequently – please check the price before purchasing.