The product is a pack of 45 Schurter 0031.3751 Fuse Holders, type FAF. These black plastic holders are designed specifically for Schurter fuses and are compatible with model 00031. Manufactured by Schurter, the holders are reliable and durable, providing a secure and stable fit for the fuses. Ideal for industrial and electrical equipment applications, these fuse holders ensure proper protection and functionality of the fuses in various settings.