Zebra Z-Select 4000D - A premium, direct thermal, bright white, coated, paper label with an all-temperature acrylic-based adhesive that survives at temperatures as low as -65 degrees Fahrenheit and can be applied at temperatures as low as -20 degrees Fahrenheit. **Labels have a center vertical slit creating two 1.125" x 1.25" labels** Direct Thermal Label Paper Label 1" Inner Diameter 5" Outer Diameter Perforation Between Labels