3 years & up. Lacing is a classic fine motor activity for children. The simultaneous use of children?s hands and eyes as they insert the tip of the string or ribbon into the holes improves their eye-hand coordination. By using the index finger and the thumb to grasp the tip of the string, children are building their pincer grip. This set of 4 durable lacing boards with realistic zoo animal images and 4 strings is the ideal toy for your child to develop their fine motor skills while having fun! The boards are sized for smaller hands and the holes are big enough to lace with ease. 6" x 6" each.