Perfect; appears to be identical to the original in every respect. I used it to replace a blown fuse in my car's rear wiper; put it in the holder and it works great again. I am surprised at the few low reviews for this product, almost all of which are due to a customer purchasing the wrong product. These are MINI FUSES as indicated in the product description and on the packaging. Before you buy an item, make sure it's what you need. But don't leave low ratings on products because of your mistakes. Such reviews are misleading and unfounded.