The product is a lot of 18 rolls of Grip-Rite roofing nails, each measuring 1-1/4" in length and made of smooth galvanized steel. These nails have a flat head style and a 15 gauge thickness. They are ideal for use in roofing projects, providing a secure and durable fastening solution for various roofing materials. With a trusted brand like Grip-Rite and a high-quality material like galvanized steel, these roofing nails offer reliability and long-lasting performance.