Wasp direct thermal labels are ideal for a wide variety of label applications and along with Wasp printers, these labels work with nearly any major model barcode printer In the Box 3.5' x 1.0' direct thermal labels 5' outside label diameter 1' standard core Permanent adhesive 4 rolls of paper labels 2300 labels per roll Compatible Printers: Wasp WPL305, WPL304, WPL205