Dymo 30332 Compatible Multi-purpose Labels for DYMO LabelWriters 330 400 450 Twin Turbo Duo 4XL Printer Compatible with DYMO 30332 Multipurpose Labels / Dimensions 1" x 1" 1 Roll / 750 labels per roll / 1 inch core High quality, bright white direct thermal paper *These labels are NOT compatible with Dymo 450, 450 Turbo, or 450 Twin Turbo printers.