Grimm's Alphabet PuzzleDiscover and learn the abstract world of letters by feeling the shape of each letter and sorting them into the right place in the frame. Cover the letters with a silk scarf and let the children only feel them: it is a challenge to find the next one. Details: 26 pieces in a wooden frame. Materials: letters made from lime wood, non toxic water based color stain, frame made from birch or poplar ply wood, non toxic plant based oil finish. Size: frame