Berg is a very popular putter from Kastaplast. It is characterized by its special shape, with a slightly lowered top, which provides a good and different grip on the disc compared to many other putters on the market.
K1 Grind plastic from Kastaplast was introduced in 2025 as part of their goal to achieve an even more sustainable production. K1 Grind plastic is therefore made from scraps and defective discs in K1 plastic, which are given new life by being crushed and molded into new discs. It is pure premium K1 plastic that has simply gone through the machine for a second time. Discs in K1 Grind plastic are designed with a colored center and a white edge.