Roll of 900 labels 4 x 6 inches (101x152mm). The label width is 4 inches (101 mm) and length of 6 inches (152 mm). The outer diameter is 185 mm with a core size of 76 mm. The leading edge is the narrow side. They are uncoated direct thermal labels with a permanent adhesive. Labels are outside wound and perforated between each label or easy tear and stick.