Permanent Adhesive keeps each 2 inch square sticker firmly in place on most surfaces Labels are 2 inches in diameter Printed on permanent polypropylene with a protective laminate, these labels will stay stuck and withstand shipping conditions Ensure your company's compliance with DOT standards. These labels follow the design and durability requirements of 49 CFR 172.407 All ChromaLabel products are proudly made in Kansas, the Heartland of the USA ChromaLabel's Hazmat and GHS labels will keep your business within compliance with all Department of Transportation and international regulations! Our Hazmat labels are available for Hazard Classes 1 through 9, as well as blank, wordless, and international variations. Our GHS Labels conform to the UN's Globally Harmonized System for labeling and transporting chemicals. With all necessary text, size, and colors to conform to CFR, ICAO, and DOT regulations, these brightly colored, permanent labels also meet the design and durability standards of DOT Guidelines, CFR 172.400