Sensory Blocks 8pk Durable Primary colored hardwood frames with with transparent inseted windows and colored beads 4 colors wooden acrylic blocks in 3 different shapes (rectangular, square and semicircle ) Good for improving kid’-eye coordination and visual perception, expanding the sensitivity to colors, shapes and sounds Perfect gift for kids Material: Wood and Acrylic Color: Multicolored Specification: Semicircle Blocks Diameter: Approx. 14 cm / 5.51 inch Rectangular Blocks Size(LxWxH): Approx. 14 x 7 cm / 5.51 x 2.76 inch Small Square Blocks Diameter: Approx. 7 cm / 2.76 inch Package Includes: 1 Set Wooden Rainbow Sound Blocks Toy