1.Perishable shipping stickers. 2.Shipping warning stickers. 3.Each stickers measures 4 inch length by 1 inch width,500 pcs per roll. 4.Bright yellow colors are obvious,makes shippers's attention to handle your packages carefully. 5.Waterproof,with strong adhesive, stick well to the brown corrugated shipping cartons. 6.People will not be able to overlook the message when you apply these stickers on the package. 7.Special handling shipping lables for perishable items. 8.Suitable for poly bags,boxes,bubble wrap,shrink wrap.