4.5/3/0/3 The original First Run Jarns were too heavy. They were pulled back to Kastaplast and ground up. That plastic was then reborn as the First Run Jarn Regrinds. Minor storage wear possible. 2022 Run.

The Kastaplast K1 Jarn is an overstable mid range driver and approach disc. It is the first overstable approach disc by Kastaplast. This flat top disc golf disc has predictable fade and is great in headwinds. Players of all skill levels need the Jarn in their bag!

Jarn is Swedish for Iron.

Jarn Specs:
Diameter: 21.3 cm
Maximum weight: 176.8 gram
Height: 1.8 cm
Rim depth: 1.4 cm
Rim thickness: 1.3 cm

K1 Line is Kastaplasts super durable material that has a nice combination of firmness and gumminess. Disc golf discs in the K1 Line have both solid and translucent colors.