Based on this product's specifications, here are some alternatives and similar models
Staples Leitz Power Performance P3 24/6 Box of 1000 Steel
Summary description:
Leitz Power Performance P3 24/6 staples are made of durable steel, designed for heavy-duty stapling tasks. Each box contains 1000 staples, with dimensions of 15 x 68 x 35 mm and a weight of 50 g. These staples are ideal for use in offices and homes, ensuring reliable performance and efficiency in binding documents.