Flat White Elastic Black Elastic Cord 5mm 6mm 7mm 9mm 12mm Face Mask Elastic. Round/Flat White Elastic / Black Elastic Cord 1mm-75mm Sewing Elastic Face Mask. Cord Width: 3mm, 5mm, 6mm, 7mm, 9mm. 4mm Flat Elastic Cord - Stretch Band for Sewing Masks Craft DIY Clothing Trouser.
eBay