8 Pcs 1 cm Thin Colorful Headbands Solid Plastic Fabric Headbands Soft Non Slip Hairbands Fashion Elastic Head Bands Soft Skinny Hair Bands DIY Hair Accessories. Thin headbands are made of polyester and plastic, feature good elasticity that ensures comfortable wearing, simple and classic, all-matching colors, easy match with different dressing styles for all-seasons and different occasions.