85/15 Bronze is a hybrid winding material which combines the brilliance of 80/20 bronze with the longer life characteristics of Phosphor Bronze, making them a very versatile string for all playing styles. The 85/15 Bronze wrap wire is precision wound onto a carefully drawn, hexagonally shaped high carbon steel core, resulting in long lasting, bright sounding tone with excellent intonation. The EZ890 is a super light gauge .009 to .045 set for light tension and enhanced playability suitable for flat picking solos and light rhythm strumming.