• The DYMO LabelWriterTM 450 Twin Turbo label printer features slots for 2 label rolls, allowing you to print addresses and parcel labels even faster
• You will have two label rolls ready for printing at any time, to increase the efficiency of your mailings
• Users can use the same types of labels on both sides and automatically switch to the second label roll when the first one runs out
• Prints at high speed up to 71 labels per minute (4-line address label)

The official product page here.