Colorful, heavy-duty chipboard lies flat for smoother tracing of the fun shapes, and more. Lacing helps promote good penmanship because it develops the pincer grip. The activities also increase fine-motor control, introduce problem-solving, develop concentration, and encourage quiet play. Laces are 36" long with easy-to-thread 1" tips. Pieces vary from 4" to 7" in size. Ages 3-6.