This Cheyenne Hawk Flex Grip is available in 22mm or 25mm. The flex grip provides a comfortable and durable grip, which is not only compatible with any tattoo machine, regardless of whether that is a coil machine or a rotary machine, but it is also a fantastically efficient product. The cartridge is quick and easy to change, which ensures a more efficient tattooing process and the materials and design ensure the hygienic nature of the grips, so long as they are sterilized before each use.