Tinksky Wooden Balancing Cactus Toy Removable Building Blocks - Multicolor Balancing Cactus Color: Multicolor. Material: Wood. Dimension: 24 * 16 * 6cm. Choose which pieces to add to the Cactus without making it fall. Balancing cactus is a fun way for a child to develop early math and analytical thinking skills. To improve their space imagination, intellectual development. Great for ages 3-8, winner of four awards.