Roll of 500 labels 4 x 6 inches (101x152mm). The label width is 4 inches (101 mm) and length of 6 inches (152 mm). The roll outer diameter is 110 mm with an internal core size of 24 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.