The SDR series ScotchCode™ Wire Marker Tape Refill Rolls are pre-printed with 6 numbers for every inch and is ideal for phase identification. This tape is also ideal for identification of terminal blocks/strips, wire in panel boards or a piece of switchgear. This thin and conformable tape meets ASTM D-1000 standard test methods, making it great for industrial electrical applications. It is compatible with the 3M STD ScotchCode tape dispenser that provides easy and ideal usage.