"Berg is designed for distinct shots, where you don’t need to worry about the disc gliding far passed the basket. The disc features an ergonomic thumb track which is prominent on the top side while not being noticeable at the bottom. This makes it feel very different from any other putter. Berg is Swedish for mountain.
 
Suitable for: Windy days, fearless putts and distinct approach shots." - Kastaplast
 
About Kastaplasts Plastics:
 
"K1 Line
K1 Line is Kastaplast’s super durable material with a nice combination of firmness and gumminess. Discs in K1 Line will appear in both solid and translucent colors.
 
K1 Soft
K1 Soft is similar to K1, but flexier and grippier. Just as with K1, this plastic comes in both translucent and solid colors.
 
K3 Line
K3 Line is our base line plastic – grippy in all conditions. With this plastic you will get that nice worked in feel quickly. Compared to other base plastics, K3 is medium soft.
 
K3 Hard
K3 Hard is the stiffer version of K3 Line. The firmness makes this line more durable than the original K3, giving it a slower aging process.
 
K1 Glow-Line
K1 Glow Line is the same super durable plastic as K1, but powered with glow!" - Kastaplast
 
Will ship USPS first class mail in plastic bag, bubble mailer with cardboard backing.