This is a pad set for models that use Lotus plates, such as those from the Muramatsu DS model onwards. Although not genuine, they are made by Pisoni, a well-established pad manufacturer. These pads are of the same quality as those used in high-end models like Powell. Please note that these are for ring keys. 11.0 x 3 17.3 x 5 (covered) 17.3 x 5 (ring) 19.0 x 3