Hair ties for children Can be used without tangling even in children's smooth hair! Product Description: Hair ties convenient for short outings. Doesn't tangle, so it's great for use in the bath. Okay to get wet, so you can be fashionable at the beach or pool. Doesn't hurt even when tied tightly, and slips off easily when removed. Material: Silicone Outer diameter: Approximately 1.5cm Width: Approximately 1.5mm Approximately 500 pieces per bag.