This bass string is made of high quality materials. It is smooth, anti-rust and won't cut your hands, providing you with perfect musical experience. A good choice for you. Features: Made of high quality steel and nickel alloy material, this product is sturdy and durable. Smooth, anti-rust and won't cut your hands, provides you with perfect musical experience. Compatible with 4-string electric bass. Lightweight and portable, easy to store and use. A good gift for bass beginner. Specification: Condition: 100% Brand New Item Type: Bass Strings Material: Steel + Nickel Alloy Four Color: Blue, Rose Red, Yellow, Green(All in) Suitable For: 4-String Electric Bass Thickness: G-1st: 0.046inch (1.16mm), D-2nd: 0.057inch (1.44mm), A-3rd: 0.079inch (2mm), E-4th: 0.100inch (2.54mm) Length: Approx. 120cm / 47.2inch Weight: Approx. 74g Package List: 4 x Bass Strings Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.