ordered from Amazon. wrong size and forgot to return description from Amazon: Rollo Direct Thermal Shipping Labels - Pack of 500 4x6 Thermal Labels Fanfold - Perforated and Strong Adhesive Made in USA. Made Right. This 2-layer thermal label is designed to provide you with fast, high-resolution prints with your Rollo printer or other thermal label printer. Supports: 203dpi resolution at 150mm/s printing speed. Doesn't require a thermal label holder. FSC Certified for Responsible Forestry in 2021 Rollo FSC License: FSC-N003774 BPA-Free Perforation between each label for easy tear Strong adhesive to ensure successful delivery of your package Non-Jamming technology 500 labels per pack Made in USA