Supernils are the strings for "slap" style used in Rock, Rock- a-billy, Bluegrass or Country & Western Swing. These strings have a very flexible feel and produce a great sound.
G-1003 - Nylon Monofilament Wound on Nylon Multi-Filament Core
D-1004 - Nylon Monofilament Wound on Nylon Multi-Filament Core
A-623 - Silver-Plated Copper Wound on Nylon Multi-Filament Core
E-624 - Silver-Plated Copper Wound on Nylon Multi-Filament Core