3 years & up. Make patterning even more engaging with these Colorful Multi-Shape Links with Jar for Learning Shapes and Patterns. Children will love building chains using three different shapes and six colors with this giant 500 piece set. These shape links are great for counting and sorting activities too! This set promotes color recognition, shape recognition, dexterity, fine motor skills, and hand-eye coordination. The pieces store in a convenient jar with screw-on lid and handle.