The product is a lot of 7 Quantum DAT 72 CDM72 36/72GB 4mm data tape cartridges. These cassette tape cartridges are new and sealed, making them ideal for storing large amounts of data. With a capacity of 36/72GB per cartridge, they provide reliable and efficient data storage for various computer and networking needs. The Quantum brand ensures high quality and performance, making these tape cartridges a valuable addition to any storage solution.