steel cable core with great flexibility and elasticity Chrome wiring Great purity of the fifth, long duration, and stability of the agreement. Orchestral tuning. Size 4/4 for scale up to 1100mm (43.3 ") Do: Average tension 32.0kg / 70.5lbs Floor: Average tension 32.0kg / 70.5lbs Re: Average tension 32.0kg / 70.5lbs The: Average tension 34.0kg / 75.0lbs Mid: Average tension 34.0kg / 75.0lbs Do: Average tension 35.0kg / 77.2lbs Si: Average tension 35.0kg / 77.2lbs Set Average tension 132.0kg / 291.0lbs