Play is kids' work and geomag helps with their training. Geomag magicube magnetic blocks, designed to initiate preschoolers to stem concepts through simple engineering principles and basic construction skills. Magnets are magnificent and introduce toddlers to the click-and-stick joys of colorful and versatile building sets. 55 pieces magnetic block set including magnetic blocks and click-on number and math symbol clips. 61 piece magnetic block set including magnetic blocks and click-on number and math symbol clips. Promotes fine motor skills and stem development. Click-and-stick on all sides and built to last and easy to clean. Recommended for ages 3 years and over.