A great addition to the block play family. Smooth hardwood frames with clear plex windows and crystal bead interiors. Sized to standard unit block measurements. Eight blocks per package: 4 rectangle and 4 half moon shapes. Features plex inner with colored beads. Solid wood frames with inset colored acrylic windows and colorful beads Set includes 4 rectangles and 4 half moon shapes Strong hardwood frames Translucent windows with colorful beads Standard unit block measurements Material: Hardwood frames with primary colored, transparent plexin windows and colorful beads Educational Focus: Hand-eye coordination, visual perception, color exploration or light table activities Suggested Age: 2+