Medium 6 string set from Blue Steel series that consists of cryogenically frozen strings by liquid nitrogen: freezing the strings down to -160°C results into tightening of the molecules and minimizing microscopic gaps, and removing transient frequencies that produce harsh highs and muddy lows. Strings are more consistent, durable and long-lasting, and deliver true tone. They are made of 8% nickel-plated steel wrapping wires on tinned Mandolin hex-core wires. Gauges: .011, .013, .018, .030, .042, .052.