Warm tips: the clear rubber bands are disposable, if you reused, each time, as expected, it gets a bit larger, please don't reuse them once it loose elastics. And you can choose appropriate quantity one time as per your hair thick and tighten requirments; （You'd better use 2 or more rubber bands when apply to the thick hair.） Please keep them away from children under 3 years old to avoid choking and swallowing | Strong and stretchy: The elastics are not so thin that they break when you try to stretch, but they are not so thick that you can't stretch them properly. They have stayed in very fine, soft hair through days of gardening. Also, they slide off the braids when grabbed and pull off clean. No rolling and catching the hair to make knots. | Great deal: This is a great deal on 2500 pieces clear rubber elastic hair bands, enough for braiding different hairstyles.made of high quality TPU, approx 2 mm (W) x 20 mm (L), easy to stretch with good elastic, non-toxic, safe and no odor | Free huge plastic case: clear box container, keep the hair ties clean and tidy | Multipurpose: these elastic bands are suitable for all kinds person, man, woman, baby, and child, ideal for long or short hair, curls, ponytail, braiding, daily hairdos and so on, also can be applied for office or industrial