Opal cello strings are handmade steel-core strings designed in Switzerland. They are manufactured using cutting-edge technology and the finest materi...More
Opal cello strings are handmade steel-core strings designed in Switze...
Opal Green viola strings are handmade strings with synthetic core. These strings offer a clear, warm, powerful and very uniform sound, without excessi...More
Opal Green viola strings are handmade strings with synthetic core. The...
Opal Titan violin strings are handmade synthetic core strings designed in Switzerland. They are manufactured using cutting-edge technology and the fin...More
Opal Titan violin strings are handmade synthetic core strings designed...
