The Circle Sorter is an all wood puzzle that develops size prgression skills, visual perception, concentration, and color recognition in early learners.  Circles, graduated in size from 2" to 5" in diameter, have 2" high knobs for easy grasping by small hands.  Color guides on puzzle base help young children solve the puzzle and build feelings of mastery and competence through their successful experience. 

Recommended for ages 9 months+.  12" Diameter x 3" High.  Made by Guidecraft.