25 Rolls Dymo Compatible Large Shipping Labels 30256 2-5/16" x 4" for DYMO LabelWriters 330 400 450 Twin Turbo Duo 4XL Printer Compatible with DYMO 30256 Shipping Labels / Dimensions 2-5/16" x 4" 25 Rolls / 300 labels per roll / 1 inch core High quality, bright white direct thermal paper Strong Adhesive/ Water Resistant / Color: White