Material: stainless steel, wood Color: Multicolor Quantity: 8 pieces Package contents: 1*wrench, 1*temperament strip, 6*mute 1. Piano Tuning Wrench: L-shaped design, made of hard stainless steel and wooden handle, durable and wear-resistant, easy to use and portable to carry. 2. Temperament Strip: Temperament Strip made of felt material, applied to mute two octaves at once by pressing between the string groups with a screwdriver or flat hammer shaft, this is the most effective way to set a temperament in, saving you a lot of time. 3. Rubber Mute Kit: 2 rubber mutes with handles and 4 rubber mutes, made of durable and natural rubber and correctly tapered, help you mute the section easier. 4. Multi-use: Ideal piano tuning kit for apprentices, students, teachers, trainers, professional piano tuners or anyone who wants to learn piano tuning. 5. Gifts for those who like musicians If your friend or family member is a pianist, he or she needs this set of tools to repair his piano. This set of tuning tools is a meaningful gift to your family, teacher, daughter, son or relatives on Christmas, moving, Thanksgiving or birthday.