The rubber band in the photo has a diameter of approximately 4cm. It should be suitable for ponytails on children. It's very cute when used for topknots, braids, half-up styles, and twin tails♪ 【Notes】 Adhesive is used in the creation of this item. We will double-check before shipping, but there is a possibility that parts may come off during delivery. If this happens, please reattach them with your own adhesive. The color may appear slightly different from the actual product depending on your computer or smartphone screen. Please understand. #hair tie #kids #children #kindergarten #nursery school #elementary school #hair accessories #rubber band #gummy #accessories #hair tie