Block play provides open-ended play experiences, is entertaining, and extremely beneficial for youngsters. Helps children gain building and problem solving skills, fosters spacial development and encorages group play. Improved fine and gross motor skills as they build. Set includes 86 pieces with 14 shapes. Guidecraft smooth unit blocks are made to resist dents and dings. You'll notice the finely sanded and rounded to eliminate any sharp edges, and are splinter-free to protect tender young hands. Guaranteed by Guidecraft for life.