Rough & Smooth Boards with Box

Set of 3 touch plates, 24 x 13 cm, with a coarse and smooth surface in a wooden box.

Plate 1 - the board is divided into two halves, one with a smooth surface, the other with a rough one.

Plate 2 - Plate with five stripes of abrasive paper with increasing roughness. The child adopts concepts as the harshest, coarser, smoother, the smoothest, etc.

Plate 3 - a wooden board with five strips of sandpaper of the same roughness.