These wristbands are 100% go green bands, and leave behind almost no carbon footprint. 100% off all scrap materials left behind is reused to manufacture other equipments. The wristbands are made from 100% silicone and contains no lead. Show your support to our go green campaign. We work with GreenRecyclingCenter.com to ensure that these wristbands meet and exceed all environmental standards. Help your world. REUSE. REDUCE. RECYCLE.