The Original Kknekki Hair Tie is recognized to be one of best hair ties in the world. The unique weaving technique makes them extremely gentle on all hair types and they won't fade, fray or loosen over time, even when worn in saltwater. Plus they're hypo-allergenic and look great when worn on the wrist! Slim version Gentle on hair Hypo-allergenic Size: Approx. 6cm outside diameter and 5mm thick