1) our factory manufactures all models fuser films for hp 2) white series number, outside color is grey, inside color is lemon green. 3) high quality and good appearance , as same as the orginal products 4) print paper number: at least 130, 000pcs 5) if you bought our fuser film sleeve , we can sent free grease for every pcs. 6) if there is any problem of quality you can return or replace. 10pcs in a roller
