• Sound Building Blocks SOUND BLOCKS Large Rubber Building Set 28 pieces including 4 arches, 12 squares, 3 triangles, 2 cos, 1 circle, 4 radius, 2 L shapes, 9 pieces of wood beads with each of them • You can enjoy endless hours of play with educational elements such as shaping and building blocks parts, from color coding, dividing and separating into wooden boxes. Each building block is large and stable, making it easy to stack even with small hands • Recommended Ages: 10 months and up. Contents: 28 building blocks, wooden box x 1; Product Size: Height 2.2 x Width 12.4 x Depth 10.4 inches (5.7 x 31.5 x 26.5 cm); Weight: 8.7 oz (2350 g); Material: Rubber wood. Country of Manufacture: Vietnam • How to use 1: Shake the wooden wooden wooden beads to develop baby's hearing with gentle sounds; How to use 2: Vivid colors that attract interest is great for nurturing visual acuity How to use: Dexterity and view sense of balance How to use 4: Maximize your imagination • Uses a paint that is safe even when licking has passed the safety standard ST. It is also made of natural rubber wood and eco-friendly material