The STEM building toy system for toddlers, Grippies® Builders combines tactile exploration, magnetic play and an introduction to the basic principles of engineering and geometry. Grippies unique, magnetic rod and ball configuration provide a secure, frustration-free set of construction options as children first discover the joy of building. Unique in concept and design, Grippies provide a fun, safe and exploratory experience for toddlers. The 20 piece set features 4 soft matte textures in exciting bright colors. To care for Grippies, simply wipe clean with a damp cloth and mild soap and allow to air dry completely before continued use. To prevent damage, do not completely submerge in water or put any Grippies pieces in a dishwasher or washing machine unit. Suggested age: 18 mos. +