New in box * Tetra tower Games balance is made of high-quality ABS material, durable and safe * The stacking blocks game can be a good way to develop children's STEM skills * The colorful balance building blocks consist of 48 blocks of 8 different shapes, 4 colors (random), 1 base (size: 2.7x6.7"), and 22 draw cards * The block stacking game is perfect for children and adults aged 3 and up, perfect gift for Children's Day, Christmas, Birthday, Holiday, New Year, and Rewards