Should have read the product description more closely. I wanted a standard 1/4" x 1 1/4" fuse and saw that in the product specs so I bought it. However, if you read the entire product description carefully, it is variously described as: - 1/4" diameter and 1 1/4" length - 1/4" (6.35mm) x 1 1/4" ( 30mm) ) (Note: if you count, 1 1/4 inch is actually 31.75mm, not 30mm). mm) - 6mm x 30mm So the seller listed three different sizes, one of which doesn't make sense! The fuses I received were actually 6mm x 30mm which is slightly smaller in diameter and shorter than I thought I would order. I installed one of the fuses in my microwave and it was very loose which is NOT what you need for an electrical connection. These are the different sizes they are trying to sell to unsuspecting buyers. Maybe it's the surplus that the suppliers are trying to get rid of? A careful inspection (see photo) of the fuses reveals poor quality. Luckily Revain refunded my purchase price when I contacted them and explained the issues.