Use of this metal inset strengthens the 3-finger grip and coordinates with the necessary wrist movements. Wooden tray designed for use with the metal insets to hold the inset and paper in place when drawing and coloring.
Dimensions: Outside: L 16" x W 10" 1/4 x H 5/8 Inside: L 5" 1/2 x W 5" 1/2 x H 5/8
