A506 Steel Core Plated Steel Coated Nickel Alloy Wound Light Super Light is made by the latest technology, with the nickel-plated steel plain string, nickel-plated alloy wire. It owns the bright tone, high antirust Protection which is 4 to 5 times stronger than that of the normal string. It is the for practicing. Model Number: A506-SL Name: Type: Strings Application: Electric Guitar Strings: 1st to 6th For: Super Light A506-SL material inch mm E-1st Plain Steel 009 0.23 B-2nd Plain Steel 011 0.28 G-3rd Plain Steel 016 0.41 D-4th Nickel Alloy Wound 024 0.61 A-5th Nickel Alloy Wound 032 0.81 E-6th Nickel Alloy Wound 042 1.07 Colour: silver Material: nickel alloy Package Contents: 30 x Guitar String Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.