Guidecraft Rainbow Block Sand

Solid wood frames with inset colored acrylic windows and colorful sand
*Set includes 4 rectangles and 4 half moon shapes
*Strong hardwood frames
*Translucent windows with colorful sand
*Standard unit block measurements
*Material: Hardwood frames with primary colored, transparent acrylic windows and colored sand
*Educational Focus: Hand-eye coordination, visual perception, color exploration or light table activities
*Suggested Age: 2+