The Swedish disc golf company Kastaplast started of in 2011 as a prototyping workshop. Since then Kataplast has grown to be a recognized company in disc golf, especially known for their quality of plastic. Besides their quality of plastic, Kastaplast is known for experimenting with disc design, resulting in discs as Berg and Rask. If you are one for playing with Glow discs, Kastaplast is definitely the right place to be. The Kastaplast K1 Glow plastic is widely known as one of the best glow plastics.