Made of reforested wood, these quality watercolor pencils are SV (secure all) bonded for break-resistant leads that do not fall out. They feature smooth colors that dissolve instantly in water. The grip-dots and triangular shape provide better control and prevents the pencils from rolling off tables and desks. These sets include richly-pigmented colors that are non-toxic, acid-free and conform to ASTM D-4236. Recommended for ages 5 and up.