We have had many satisfied customer who have purchased this item over the past 10 years and now it's improved.  We are now using a plywood that is much smoother. Each set includes 26 pieces - 6 little lines, 6 small curves, 6 large curves, and 8 big lines. The size of the pieces is the same as the pieces from Handwriting Without Tears. Use to form and teach all the letters of the alphabet. Great teaching tool and fun too! The capital letter D shown in the picture is 10 inches high.