| STEM Learning Toys | Creative Construction Engineering | Fun Educational Building Blocks Toy Set for Boys and Girls Ages 5 6 7 8 9 10 Year Old + | Best Toy Gift for Kids | Activity Game is up for auction in Toys & Games. The current bid is $11.50, 71% below the $39.99 MSRP, in Good Condition. This auction has ended — similar items appear in live auctions regularly.