Dymo XTL Heat-Shrink Tube - 1/4" Width - Thermal Transfer - White - Polyolefin - Water - Oil , , Flame Retardant, Fade Proof, Smear Proof, Heat-shrinkable, Tear Proof - 1 Each Heat-shrink tubes with flame-retardant sleeves feature a 3:1 shrink ratio to create a tight, secure fit around your wires and cables. Thermal transfer printing technology protects from smearing and fading for long-lasting print visibility. Tubes are perfect for labeling wires, cables and more. is designed for use with Dymo XTL 300 and 500 labelmakers (sold separately).