This board is designed to help your child practice curves, straight lines, angles, and patterns. These prewriting lines are a great way to build consistency in penmanship and muscle control of small movements. This lovely maple wooden board has deep, smooth, rounded grooves. You can follow the paths with your finger, tracing stick, ball, or push the ball with the tracing stick. You can fill the grooves with play dough, dry beans and rice, small stones, and more.