Feature: 1. Different Colors: Come with 6 different color and size circles that is very cute, including yellow, pink, nude pink, green, blue and white that is suitable for kid to identify colors and size. 2. Multifunction: Stacking circle toy can used as a teether and whistle, with a small hole at the bottom of each soft circle, will give a squeaky sound when kids squeezing it. 3. Educational: Kids can stacking rings in anyway they want to exercise hands on ability and creativity, animals, patterns and letters designed to develop kid's digital cognition and shape recognition. 4. Perfect Gift: All children are interesting about building things, stacking toy adopted star shape design to make the girls like it as well, which is the best gift for child and toddlers, no matter boy or girl. 5. Excellent PVC: Baby stacking circle made of high quality PVC material, soft and non toxic, chewable and with a good hand feeling, allow you can rest assured that children can play and bite. Specification: Item Type: Stacking Rings Toy Material: PVC Suitable Age: Above 6 Months Old . Package List: 6 x Stacking Rings