The Kastaplast Järn is for precise placement shots near the circle. In line with the green, throw the disc up and watch it fade and fall into place. In K1 Plastic, the Jarn will maintain its overstability for a long time even after hitting rocky and hard surfaces. This disc is also great for putter-mid forehands and touchy flex shots. If you're after a Discraft Zone from another brand, the Jarn is a great choice.
Järn means Iron in Swedish.
K1 Soft Plastic: An even gummier and softer feeling version of Kastaplast's renown K1, for added grip and less ground skip.
