Dimensions: 7W x 7D x 2H in. (Largest)Hardwood frames and acrylic windowsEnhances STEM-based activities6-piece magnification setPerfect for group play. The eye-catching Guidecraft Magnification Blocks are terrific for decoration and discovery. These six uniquely sized stacking squares are crafted using solid hardwood frames with rounded edges and inset acrylic windows that magnify the contents within. Add a leaf or flower and gain a whole new perspective on nature!About GuidecraftGuidecraft was founded in 1964 in a small woodshop producing 10 items. Today Guidecraft's line includes over 160 educational toys and furnishings. The company's size has changed but their mission remains the same; stay true to the tradition of smart beautifully crafted wood products which allow children's minds and imaginations room to truly wonder and grow.Guidecraft plans to continue far into the future with what they do best while always giving their loyal customers what they have come to expect: expert quality excellent service and an ever-growing collection of creativity-inspiring products for children.