K1 plastic is the most durable of plastics in the Kastaplast line up. It has a good combination firmness and gumminess. Discs in K1 Line will appear in both solid and translucent colors and is used mostly in fairway and distance drivers.
K3 plastic is the base line plastic from Kastaplast. It is grippy in all conditions. With this plastic you will get that nice worked in feel pretty quickly. Compared to base line plastics from other brands, K3 is medium soft. K3 plastic is generally reserved for putters and midrange discs. K3 hard plastic is the more rigid variety of K3 plastic, often the preferred choice of more experienced players.
THE CHOICE OF YOUR FRISBEE
Discgolf discs are not designed to throw and catch. For experienced throwers it is possible, especially with a putter or midrange disc. If you want a disc to play throw and catch, we advise you not to take a discgolf disc, but a disc from the section Ultimate Frisbees in our left menu serves this purpose better. You can find more advice on choosing your frisbee in our FAQ.