Building Brick Stem Challenge

Give kids a fun new way to develop their STEM skills—with building bricks! From constructing a bridge for a car to cross to creating a marble maze, kids will love taking on each exciting challenge as they explore physical science concepts. Includes 253 building pieces, 4 marbles and 10 challenge cards with building tips and possible solutions on back; longest building piece is 57/8" x 105/8".