This heirloom quality construction set is a hit with folks of all ages.
Make your own marble mazes! The possible combinations are nearly endless.
The motion is governed by gravity. So, relax and enjoy the day - there are no batteries to run down.
The master set includes 80 hardwood blocks, play board, 20 marbles, and a canvas tote bag.
Dimensions: small cubic blocks are 1 5/8" (4.1 cm) on a side,
play board measures 18" x 14 3/5" (45.7 cm x 37.1 cm).