This Item is a Brady BMP51 / BMP53 Label Maker Cartridge 0.5" Black on Red.  Its part number is M-83-499-RD-BK.

This item comes as pictured and does not include any additional parts or accessories.

Specification: 

• Manufacturer: Brady
• Part Number: M-83-499-RD-BK
• Product: Label Cartridge
• Label Type: Die Cut
• For Use With: BMP41, BMP51, Bmp53, R4300
• Color: Red