We had tested that it is fit for Logitech G910 G810 G413 G310 K840 G613 Romer-G Mechanical keyboard And fit for other Romer-G Mechanical keyboard that we don't test How to identify If you don't know if this item is fit for your keyboard, It doesn't matter!! Open your keycaps, and compaer with the Left Picture There maybe different color,but the size is same. If the shape is the same, then it is fit for you.