MFLABEL 6 Rolls Dymo 1744907 Shipping Labels Compatible LabelWriter 4XL of 220 Postage Labels (BPA free) 2 years warranty 100% compatible with Dymo 4XL LabelWriter, 220/Roll, 1" Core Strong adhesive to corrugated boxes and envelopes With premium raw material, our label is waterproof, durable and printing clearly Minimum application temperature: 50; Service temperature range: -59~+149