The product is a set of 4 boxes of ULINE C32M 5/8" staples specifically designed for use with pneumatic staplers. The ULINE brand is known for its quality and reliability in the industry, making these staples a trusted choice for home and workshop applications. The model number H-1027 indicates the specific design of these staples, ensuring compatibility with pneumatic staplers of that type. Perfect for a variety of fastening tasks, these ULINE staples are a must-have for any DIY enthusiast or professional handyperson.