Frankly it's a disappointing product. When entering it with your fingers, instead of coming at once and in one piece, the dough gets sticky filaments to super long. Is brought into everywhere, it flows from all sides as if iul was stringy melted cheese. When passing the paste on the keyboard, the keys are certainly cleaned surface but even by pressing and insistent, it hardly detracts from what lies between the keys. Best of all, in the end, a little substance remains here and there on the keyboard and it takes whatever happens take a rag and clean it. In short if you are looking for an effective product to clean the keyboard, go your way it is a catch and switch.