BPA FREE OfficeSmartLabels 2-5/16" x 4" Shipping Labels (300 labels) Dymo 30256 Compatible for DYMO LabelWriters 330 400 450 Twin Turbo Duo 4XL Printer Compatible with DYMO 30256 Shipping Labels / Dimensions 2-5/16" x 4" 1 Roll / 300 labels per roll / 1 inch core High quality, bright white direct thermal paper Strong Adhesive / Water Resistant / Color: White