Item Type: Electric Bass Strings Material: Metal 1[METAL STRINGS] This set of bass strings is made of metal, waterproof and sweat proof, and guarantees that the strings are in top condition 24 hours a day. 2[PERFECT REPLACEMENT] This bass string is a great replacement for your broken, dirty or old bass strings and will keep your bass looking brand new. 3[GOOD SOUND QUALITY] These bass strings help your instrument produce a round, bright, and full sound, making it a great replacement. 4[4PCS IN A SET] The bass string set includes 4 strings, suitable for a 4 string bass guitar or bass, and can be completely replaced. 5[STURDY AND DURABLE] Our strings are strong and durable, these 4 strings will last you a long time, and I am sure you will love them.4 xElectricBassString