Complete circles with these Curve Blocks. Children will learn about ordering, spatial relations, and how to compare the height and size of each circle. This elegant learning tool deserves a spot in any preschool class or young learners' playroom. As with all Plan Toys, Curve Blocks are made using ethically-produced, all-natural rubberwood and non-toxic water-based paints to create a perfect blend of beauty and function.Contents include: 9 Curve Blocks, 1 CylinderFor 1 playerAges 3 and upMade in ThailandBrand new condition in original packagingWipe clean with dry or damp clothWarning: Choking Hazard - Contains small parts not suitable for children under 3 years.