The Ernie Ball Paradigm Regular Slinky 7-String set is ma marvel of modern string technology. With rock-solid steel cores these strings will prove to be ultra-strong – perfect for heavy playing. Each is coated in Ernie Balls special Everlast nano formula meaning theyve all got protection against a strings worst enemies – sweat grime dust and dirt. Theyll prove to be incredibly durable and are sure to stand the test of time. If you want professional standard strings that will give you the perfect performance and feel youve found them.