Dymo XTL Heat Shrink Tubing - 1/2 Inch Wide - Permanent Adhesive - Thermal Transfer - White - Polyolefin - 1 Each - Water - Oil, Flame Retardant, Fade Proof, Stain Proof, Heat Shrink Tubing with Flame Retardant Sleeves Feature with a 3:1 shrink ratio to create a tight, secure fit around your cables and wires. Thermal transfer printing technology protects from smudging and fading for long-lasting print visibility. The tubes are perfect for labeling wires, cables and more. It is designed for use with DYMO XTL 300 and 500 labelers (sold separately).