Using environmentally friendly corn starch, they can be degraded without much effot, thus no harm would be done to our mother nature. They are portable with the roll dispenser so it would be easy for you to carry when going outside for a walk with you pet. Features - Color: Green. - Material: Corn Starch,PLA, PBAT. - Size: About 36x35x0.1cm. - Using environmentally friendly plastic, they can be degraded without much effot. - They are portable with the roll dispenser so it would be easy for you to carry when going outside for a walk with you pet. - A must have when walking with your dog,cat, convenient to clean up wastes. - Prevents odors and leakage of stools during use. Respect everyone. - It is a good gift for friends and family members who have pets. They will very happy.