D'Addario Prelude Bass Single E String, 3/4 Scale, Medium Tension 3/4 size bass with a playing length of 41 3/4 inches (1060mm) Medium tension Stranded steel core makes for optimum playability and produces a clear, warm tone Educator's preferred choice for student strings due to their unique blend of warm tone, economy, and durability All D'Addario strings are designed, engineered and manufactured in the USA to the most stringent quality controls in the industry