12 x Roll of 500 White Self Adhesive Thermal Printer Labels 4" x 6" (10.16 x 15.24cm). Simplify your shipping process with this Roll of 500 White Self Adhesive Thermal Printer Labels, designed for fast, reliable, and professional results. Each label measures 4" x 6" (10.16 x 15.24 cm) — the standard size used by most courier and shipping platforms. With a 2.5 cm core, these labels are compatible with most desktop direct thermal printers and feed smoothly without jamming. The direct thermal coating produces clean, smudge-free prints without the need for ink or toner, helping reduce running costs. The strong permanent adhesive ensures labels stay firmly in place throughout transit, making them perfect for shipping, barcoding, inventory, and warehouse use.