Magnification Blocks – Guidecraft G3018 Six stacking squares feature hardwood frames, and smooth, rounded corners and edges, with inset magnified acrylic windows. Ideal for exploring natural, tactile, and other detailed materials found inside or in nature. Enhance STEM-based activities with the 6-piece set, perfect for group play. Largest square measures 7?W x 7?D x 2?H..
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