These doubleshot ABS keycaps by GMK offer the retro look of the Triumph Adler Royal Alpha 610 typewriter—with a modern twist. Like all GMK keysets (and the original Alpha 610 keycaps), these caps are made from the highest quality plastic: thick doubleshot German ABS in Cherry profile. As these are authentic Cherry, they cost more to manufacture than the PBT keycaps on the market today.