Sparki comes in two sizes of magnetic base (30 & 50 mm) and a 100 mm steel base for permanent fixing to the bench.Sparki with the magnet base allows you to take it anywhere and attach close to where you are working, for hands free lighting and operation of your equipment. Easily fits into overall pockets.Sparki with the steel base can be permanently fixed to your work bench so that you never have to look for that spark lighter ever again.