The Frig Idô Labeling system will perform in temperatures to -20°F. Frig Idô Laser Labels are precision cut on 8-1/2" x 11" sheets. The permanent adhesive system becomes more aggressive as temperature drops below 32°F. Apply to Lo-Temp magnets (included) and install. Relocate as required. Kit Includes: 25 magnets, ample labels and printing instructions. 3"L x 1"H Overall Dimensions.