This whimsical rug has brightly colored squares designed to convey a playful feeling of movement and ''wobble'' that will attract children to the floor for circle time or group activities. The Size C rug has 20 seats, and Sizes D and G have 30 seats each. The Carpet and Rug Institute’s Green Label Plus® Certification is an independent test that measures VOC (Volatile Organic Compound) emissions in carpet. Carpet certified as Green Label Plus® exceeds the most stringent Indoor Air Quality standards and is best suited for living, working, and learning environments.