The product is a set of 5 packs of Pentel Super Hi-Polymer Lead Refills in 0.2mm Ultra Fine, HB hardness, containing a total of 120 pieces. These lead refills are designed for use with mechanical pencils and are known for their high quality and durability. The Pentel brand is well-respected in the office supplies industry for producing reliable writing tools, making this product a practical and efficient choice for those in need of consistent and precise writing instrument refills.