?? Weight: 4 gram/piece. ?? Size: External Diameter: 4 cm(1.58 inch), Internal Diameter: 2 cm(0.8 inch), Height: 1 cm(0.4 inch), Coil Thickness: 0.25 cm(0.1 inch). Stretch Length: 30 cm(12 inch), ?? Material: TPU: Thermoplastic Polyurethanes, A kind of Polymer Material Between Rubber and Plastic, Safe and Harmless to Human Body. ?? Notice: Do Not Wear it On Children's Wrists or Wrap Around Fingers to Avoid Danger.

?? Made Of TPU, Soft, Smooth and Flexible, Firm and Elastic, Can be Recovered After Deformation by Blowing Hot Air With a Blower or Dip in Warm Water. ?? Holding Hair Securely in Place, Waterproof So Can Wear While Swimming or Bathing, Smooth Surface Allows it Can Be Removed From Wet Hair Easily Without Bring Hair Tangles. ?? Waterproof, Doesn’t Absorb Fluids, Washable at Any Time and More Hygienic, Safe and Harmless to Human Body, and Don't Need to Worry About It. ?? Works for Any Hair Type, Thick or Thin, Wavy or Straight, Effortless and Easy to Use for Daily, 27 Pieces That Can be Replaced and Can Use for a Very Long Time. ?? Nice for Daily Collocation, Transparent Color Can Be Suit With Any Color of Hair and Clothing.