Description Pirastro Permanent double bass strings offer a clear and focused sound ideally suited to arco and solo playing. Their core is a high-tensile rope made from carbon steel, wound with nickel. They give a very quick response under the bow and project awesomely with plenty of volume. Pirastro Permanents are instantly playable and completely stable, offering great tuning stability, which is mainly due to their core. Also available as Pirastro Permanent Solo Tuning Made in Germany by Pirastro
