Avery Ultra Resistant Labels 38 x 21mm Permanent 65 Labels Per Sheet (1300 Labels Per Pack) B7651-20These Ultra Resistant labels are really tough. With extra strong adhesive, abrasion and chemical resistance and their ability to survive under sea water for at least 90 days, along with their extreme temperature ( 40C to + 150C) rating theyre ideal for harsh environments. They are steam cleanable and adhere well to curved surfaces. Suitable for printing in most laser printers, the excellent print finish on these bright white labels is clear and sharp