Lace and Trace Choo Choo by Lauri is colorful, heavy-duty chipboard that lies flat for smoother tracing of the fun shapes and more. Lacing helps support 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 27" long with easy-to-thread 1" tips. Pieces vary from 4" to 7" in size. Ages 3 and up.