Set of 10 mirror blocks features hardwood frames with soft, rounded corners and Mylar mirrored double faced interiors. Sized to standard unit block measurements. • Hardwood block set with mirrors • Set includes 10 blocks • Ideal for indoor/outdoor STEM activities • Smooth rounded corners and edges • Standard unit block measurements • Material: Rubberwood block frames with inset double-faced Mylar windows • Educational Focus: Science, visual perception, block play, size relationships • Winner of the 2010 Oppenheim Toy Portfolio Platinum Award • Suggested Age: 2+