This is the overstable compliment to the Grym by Kastaplast; the K1 Glow Grym X! This driver is overstable in flight (but slightly less than 2021), primarily suited for those with faster arm speeds. K1 Glow plastic is very grippy, moderately rigid, very durable, and glows like it is radioactive!
Grym X provides a well-balanced combination of speed, accuracy and glide. With a rim width of 22 mm, it fits right into the spot where the disc is workable and easy to grip, while still being very fast. Grym is Swedish for cruel or awesome, and the X stands for Xtra stability.