Overwatch logo 17 piece num pad key cap set, for 17 key layouts only, as shown in photos.
Available in 2 styles - black with transparent logo, or red with solid white logo.
Works with Cherry MX switches and all other switch types that are compatible with Cherry MX. Does not work with standalone switch types, such as Logitech Romer-G.
If you don't know what switch type you have, you can check the manufacturer website, call/email them, or check on Google.