Spin is an understable putter that is designed to glide a little further than many other putters. It can be used for both putting and throwing, where the disc's flight characteristics in both cases will help you find a little extra distance at low power.
In the Dyers Delight edition you get a completely white disc in Neutron plastic without a stamp on the top. It is therefore particularly suitable for painting yourself. Painting discs has become a popular hobby for many disc golf players, and is also called "custom dye". In Neutron plastic you get a disc that accepts color particularly well.