RN BEAUTY Reazana 27 PCS Spiral Hair Ties - No Crease Coil Hair Bands for Thick & Curly Hair (1.58inch/4cm Diameter) - Waterproof Elastic Traceless Ponytail Holders for Women, Girls & Kids - Perfect for Workouts, Yoga & Everyday Styling - Black

?? 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.