Boston BC-85-BK fjærbelastet capo for akustisk og elektrisk gitararticle number: BC 85 BK product id: 33465 spring loaded capo for acoustic or electric guitar, black The Boston BC 85 capo is an essential accessory for guitar players. Not only does it transpose the open strings of your guitar, it can also be used to influence the tone colour. The pressure of the spring has been carefully set to make sure the capo squeezes tight enough, but not so tight that it detunes your guitar. The rubber padding of the grips