Each of the To Tonet block sets include 14 pieces made of sustainable basswood. Children can see and feel two debossed sides per block. The number blocks include the plus, minus, and equals signs to create equations. The alphabet blocks feature geometric and floral patterns. Use them for pre-literacy skill development, as loose parts with table toys and builders, or as decorative elements in your classroom. Non-toxic inks are used to make these beautiful blocks that are manufactured here in the USA.