Features: Utility Piano Tuning Kit: This piano tuning kit includes 8 pieces 1 tuning wrench, 1 temperament strip, 2 mutes with handle, and 4 mute replacements. Made from durable materials, it resists deformation and ensures long-term performance. Professional Tuning Tool Set: A complete and professional tuning tool set designed for ease of use, with flexible and precise construction for reliable, long-lasting use. Soft Rubber Mute Kit: Includes 2 rubber mutes with handle and 4 replacement mutes, crafted from soft, durable rubber to effectively mute strings without damaging the piano. Practical Metal Piano Tuning Hammer Wrench: Constructed from heavy-duty metal with a polished handle, this tuning wrench is durable, abrasion-resistant, and portable for convenient use without location restrictions. Wide Range Application: Ideal for piano apprentices, learners, students, teachers, trainers, professional piano tuners, and hobbyists interested in piano tuning. Specifications: Material: Rubber, Metal, Felt Net Weight: approx. 168g / 0.37 lbs Color Options: Black/Blue Product Dimensions: Tuning wrench approx. 16cm / 6.3 inches Package Includes: 1 x Tuning Hammer Wrench, 1 x Temperament Strip, 2 x Mutes with Handle, 4 x Mute Replacements Note: Please allow 12 cm variation due to manual measurement. The actual color may vary slightly due to monitor display differences.