2" X 3" Do Not Stack, Preprinted Shipping Instruction Message Warning Labels (1 Roll, 500 Stickers/Roll) Aegis  only sold by PackagingGroup. Powerful Adhesive that sticks to virtually any surface for a permanent hold. Do Not Stack Pre-Printed Stock Labels. Provide eye-catching, professional shipping & handling instructions, messages, graphics to ensure the safe arrival of your important shipments. 2 X 3 Label; 500 Labels/Roll. High-Resolution, Vibrant-Red, Semi-Gloss, Premium Labels.