Good Housekeeping: Since 1909. Limited warranty to consumers. Replacement or refund if defective. Removed burned on foods. Weiman Glass Cook Top Heavy Duty Cleaner & Polish cleans, shines and protects glass/ceramic smooth top ranges in one step. This formula removes heavily burned on foods and will not scratch. Weiman proudly supports the National Ovarian Cancer Coalition. To learn more visit: www.ovarian.org. Phosphorus, trace amount. www.weiman.com. The good feeling of clean. Made in the USA.