RPM has a putter called the Ruru or Morepork, named after a native owl in New Zealand. This putter has a slow and consistent flight, and is stable with a small late fade. The Ruru has a small bead and a deep rim, and is available in 4 plastic types with various effects. It is approved by PDGA up to 174.3g.
RPM Glow plastic is similar to Cosmic/Atomic and has a simple glow color. This plastic type has a great grip and is slightly softer than RPM’s usual plastics.