Sold in lots of 12 @ $10.30 each. Link, pop, sort, and sequence to build a colorful inchworm! Soft plastic Pop Blocs make it easy for children to snap the pieces together to make a spiral, loop, or zigzag chain.. then pull them apart with a pop. A wonderful tool for developing manual dexterity, hand-eye coordination, and finger strength, Build an Inchworm includes a cheerful face "block" to give personality to chains of any length. Great for color recognition, sequencing, and more!