GHS Guitar Boomers Round wound Electric Guitar Strings - GBL-12 Set - 12 Sets - 010-046 Many GHS Strings sets are now available in 12 Pack sets. 12 Pack sets represent a tremendous value...., convenience and availability. The strings in these 12 pack sets are packaged in GHS Nitro-Packs. the 12 pack box is your way to keep your Boomers at the ready, in a convenient all-in-one package. The 12 sets are individually organized in a box, that's easy to store in a tour bus and keep out on a tech bench.The GHS Boomers Series are the flagship set of GHS Strings. Used by musicians in every genre, the Boomers have shown to stand up to any playing style. Now known as 'The Power String', GHS Boomers continue to make their mark on music across the world. The round wound guitar set is made with Nickel-Plated steel wrapped tightly around a round core wire. The combination provides the string with its bright characteristic and long-lasting tone. 6-string electric set: 010-013-017-DY26-DY36-DY46 (12 sets).