Visually stunning building bricks made from beautiful rubberwood with colorful transparent acrylic inserts. Can be used in building and stacking with double and half sized bricks. The full set includes 36 pieces (24 large, 12 small) with rounded corners and colorful inserts (red, green, blue, yellow, clear and mirror). Encourage the children to see a world in different colors and perspective on a light panel. Size of large brick: 7.87" x 3" x 3". Size of small brick: 4" x 3" x 3".