Fun all around! The Circle Sorter G Color & Size Knob Puzzle by Guidecraft gives all little ones the chance to explore shapes, dimension and colors! This unique puzzle, specially designed for the smallest hands, features 5 different sized circle pieces 2-5 inches in diameter with easy to grasp large knobs and a color coded puzzle base. Toddlers and babies of all ages will love Guidecraft's Circle Sorter GColor & Size Knob Puzzle. The set features smooth edges, durable hardwood and non-toxic paints making it great for even the youngest children. Educational Toys Planet offers this award winning toy as an exciting way to enhance fine motor skills and problem solving skills. Sure to become a family favorite for years to come!