Typically, under normal operations, a standard roll of 220 labels will last on average six - eight months. You can purchase additional rolls of paper from your local office supply store. Or, you can order additional rolls from an online retailer. 

Dymo Label SKU: 30323

Label Dimensions: 2-1/8" x 4"

For reliable printing, the Dymo brand is recommended. However, you can use third party labels that match the Dymo SKU above.