Conforms to EN ISO20471:2013; Visibility in the darkness and reflective at night; 5cm width; One simple heat-seal operation to apply (160-190∞ for 10-20 seconds) ; Hardwearing and weatherproof; Washable at 60∞; 25 wash cycles; Not recommended for Nylons and fabrics treated with a durable water repellent (DWR) finish; Easy application to T-shirts, Polo's, etc.