Want to get your message across? Great ideas deserve to be spread, and what easier way than using custom magnets anywhere where there is a metallic surface? These strong, fast holding magnets boldly broadcast your message for all to see, get yours today! .: Material: White vinyl with black magnetic backing .: Size 3x3 .: Matte finish .: For indoor use .: Thin (0.03" (0.8 mm)) and lightweight