Features: A set of 4 strings: A-1st, D-2nd, G-3rd, C-4th, suitable for 3/4 4/4 cello. Metal strings are made of good quality copper nickel zinc alloy with colorful coatings. Not prone to rust or break, very durable to use. Adopt fine workmanship and delicate design, easy and convenient for you to use. Nice gift for your friends and family who loves playing cello, it is the good cello replacement. Specification: Brand: IRIN Material: Copper Nickel Zinc Alloy Thickness: A-1st: 0.020inch (0.5mm); D-2nd: 0.032inch (0.8mm); G-3rd: 0.042inch (1.07mm); C-4th: 0.059inch (1.49mm) Length: Approx. 43inch (110cm) Weight: Approx. 28g Package list: 1 * String Set Package List 1A set of 4 strings: A-1st, D-2nd, G-3rd, C-4th, suitable for 3/4 4/4 cello 2Metal strings are made of good quality copper nickel zinc alloy with colorful coatings 3Not prone to rust or break, very durable to use 4Adopt fine workmanship and delicate design, easy and convenient for you to use 5Nice gift for your friends and family who loves playing cello, it is the good cello replacement