Since 1975 GHS Guitar Boomers™ have been THE POWER STRING and continue to set the standard for musicians in nearly every genre of music. Nickel-plated steel wound over a round core brings a bright tone with a powerful attack that lasts for an extended period of time. Each string is individually sealed in the GHS Nitro-Pack envelope (with their Anti-Corrosion Guarantee) ensuring they re as fresh as the day they were wound at the GHS factory in Battle Creek MI. David Gilmour s connection with GHS Boomers™ goes back to 1979 when he started using them on Pink floyd s The Wall project. He uses gauges 10.5. 13 17 30 40 and 50 on his Gibson Les Paul™. FEATURES Model: GB-DGG Featuring NitroPack singles guaranteed fresh from the factory! Custom Gauges featuring Nickel-Plated Electric Guitar Boomers Used Since The Wall Offers a brilliant tone and powerful attack THE POWER STRING. Signature Gauges (Red): 0105-013-017-030-040-050