Exercise children's ability、 let the children develop imagination、 while stimulating your left and right brain; Can be freely built into different shapes according to children's own imagination and help develop their logical thinking ability. Dimensions: 0.20 in x 0.20 in x 0.20 in (0.5 cm x 0.5 cm x 0.5 cm) Weight: 3.70 oz (105 g)