Features: Material: Punk style guitar strings muter is made of soft cotton, neoprene, and ABS material, without damage to your guitar strings. Weaken String Noise: Help eliminate overtones and resonances, and reduce unnecessary string noise of string instruments. Guitar String Mute Strap: Dimensions is approx.19cm or 7.48inch can be used with 6-string and 7-string electric guitar, classical guitar. Widely Used: Suitable for guitars, basses and other stringed instruments. A great assistant tool for guitar or bass players. Easy To Use: Easy to install and remove, no tools or special installation required. You can adjust the strap to fine-tune your dampener pressure. Specifications: Material: CottonandNeopreneandABS Color: Black or Red or White Package Weight: approx.20g Length: approx.19cm or 7.48in (More Size Detail, Please See Photo.) Package Includes: 1Pc x Guitar Mute Wraps note: Please allow 1-2cm error due to manual measurement. Please make sure you do not mind before you bid. Due to the differences between different monitors, the picture may not reflect the actual color of the item. Thanks!