12 Pcs Rainbow Fairytale Window Blocks With Storage TrayA set of 12 fairytale natural window shapes blocks Comes in a solid wooden tray for storage Includes six shapes (two of each) of sparkling blocks Translucent wooden window blocks complement other open ended toys Suitable for science experiments with color theory and light Transparent, facet cut sparkling stones glitter in the sun Fascinating to look through Material: beechwood and acrylic Dimensions: Window blocks: 4 to 5. 8 inches (length)