Practice the violin without disturbing others with the help of the Fiddlerman Practice Mute! It is constructed of rubber and features five prongs for ease of application. This violin practice mute is specially designed to provide a medium level of muting while preserving more tone quality than the metal variety. It greatly reduces volume for apartment and late-night practicing. Ideal for students and professionals, this violin mute is lightweight and safe. - For quiet practicing, ideal for apartments and late-night sessions - Medium-level muting, preserving tone quality - Heavy duty rubber construction - 5-prong design for easy application For 4/4 - 3/4 size violins. Also fits most 1/2 size violins User Instructions Gently place the mute on the bridge with the Fiddlerman brand facing the tailpiece. Ensure that the prongs are evenly spaced between the strings. Tap the mute with one finger until it's securely attached.