FW-MTD-3PK-MD Size: Medium Features: -String Muter.-Easy to use.-Patents pending.-Perform and record clean lines without unwanted string noise.-Small: Fits 4- to 5-string basses, 6-string electric and acoustic guitars.-Medium: Fits 5- to 6-string basses & 6-string classical guitars.-Large: Fits 6- to 7-string basses & 7- to 8-string guitars.-Made in the USA.-7" H x 3" W x 1" D, 1.2 lbs. Color/Finish: -Color: Black.