Exercise children's ability、 develop children's imagination、 while stimulating children's left and right brain; Can be built into any shapes according to their own imagination、 which help develop children's 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: 1.23 oz (35 g)