Professional Piano Tuner Kit Tuning Tool Set Wrench Hammer Rubber Mutes Red Felt Temperament Strip and Circles Fixing Tool Supplies for Piano Package comes with 1 wrench hammer 2 rubber mutes with handle 2 rubber mutes 1 felt temperament strip and 1 bag of felt temperament circles (appr. 90ocs) to fully meet your needs. Made of high-quality professional materials tools fit for piano tune perfectly. Efficient way of setting a temperament -- used to mute two octaves at once by pushing between groups of strings with a screwdriver or flattened hammer shank. piano tuning wrench of L-shape design features exquisite appearance and easy operation. rubber mutes have a centain flexibility and abrasion performance in order to reduce abrasion on iano parts and be reused for many times. Indispensable tool kits for piano players to do piano tuning work. Specifications: Color: Red Felt Temperament Circle Diameter: 1.2cm / 0.47in Item Size: Felt Temperament Strip Thickness: 0.5cm / 0.2in Rubber Mutes (with handle) Size: 4.7 * 1.1 * 1cm / 1.85 * 0.43 * 0.39in Felt Temperament Strip Width: 1.3cm~2.3cm / 0.51in~0.9in Package Size: 18 * 15 * 4cm / 7.1 * 5.9 * 1.57in Package Weight: 143g / 5oz Material: Wool Felt+ Rubber+ Metal Felt Temperament Strip Length: 108cm / 42.52in Rubber Mutes (without handle) Size: 10.2 * 1.3 * 1cm / 4 * 0.51 * 0.39in Package List: 2 * Rubber mutes 1 * Felt temperament strip 1 * Wrench hammer 90 * Felt temperament circles 2 * Rubber mutes with handle