WedDecor Silicone Cord Locks Adjustable Slider Toggle Non-Slip End Stopper Fastener Durable Non-Slip Buckles for Elastic Drawstring, Backpacks, Shoelaces, Making Face Cover (9mm x 6.5mm, Black,100pcs)

❄TWO HOLE CORD LOCKS: This silicon toggle cord stopper has a length, width and hole size of 9mm, 6.5mm & 2mm respectively which can be used by adults and children and easy for you to adjust to meet the tightness requirement. ❄FIRM GRIP: Toggle stoppers with cylinderical design can keep a firm grip on whatever use it for with easy installation and usage ❄FEATURE: Simply squeeze together and the adjustment buckle can move freely up and down, tension is applied and the adjustment buckle stays in place when released ❄DIY ELASTIC COR LOCKS: These toggle stoppers are perfect for adjust length of face cover and effectively fix the mask in place to provide better protection. ❄WIDE APPLICATION: Multipurpose cord stopper perfect for drawstring, sewing process, easily adjust the length of elastic cord & suitable for children to adjust face cover cord