The hair ties can be stretched easily and resume quickly, which can hold your hair tightly while working, sporting or playing. The hair elastic is 4 mm in thickness, 2″ in diameter, which is perfect to hair styles from medium to thick. 120 Pieces Hair Elastics Made of Durable Materials: Suit for your spare, replacement or sharing with friends and families. Our hair band can be stretched to 10.6″, which is very elastic and strong. It won’t break easily. Soft, no crease elastic provide secure hold without damage.