This is a TOSHIBA TEC Direct Thermal (DT) label, part number LDS040065R1ST-8-AZ, designed as a consumable for various printing applications. Each white, top-coated label measures 4" x 6.5" and is perforated for easy separation. These labels come 900 per roll, with 4 rolls per case, featuring a 3" inner diameter core and an 8" outer diameter, wound out for compatibility.