RFID Label - SLS RFID - 2.1" x 2.1" RFID Thermal Transfer Polyester (Tote Label) Label contains SLS 4428 inlay with the Monza M730 IC, Permanent Adhesive. 2,500 labels/roll 17,500/case. Ideal for High-density polyethylene (HDPE) and Structural Foam substrates. Max Read Range: 45 feet. Priced per Label. Call for Quantity Discounts.