Features: 1. Compact tuning fork in plastic bag 2. Suitable for adjusting any instrument, providing accurate C sound 3. Just tap the end and secure the base to a piano table that can be used as a speaker. 4. Tuning forks are traditionally used to adjust the string portion of an orchestra 5. Essential items for any orchestral playing Specification: Condition: 100% Brand New Item Type: Tuning Fork Material: Stainless Steel Frequency: C-523HZ Rod Diameter: 4.5mm / 0.18" Dimensions: Approx. 120 x 19mm / 4.8" x 0.75" (length x width) Net Weight: 30 g / 1.1 oz(approx.) Package List: 1 x Tuning Fork Note: 1. Please allow slight error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. 1、Compact tuning fork in plastic bag. 2、Suitable for adjusting any instrument, providing accurate C sound. 3、Just tap the end and secure the base to a piano table that can be used as a speaker. 4、Tuning forks are traditionally used to adjust the string portion of an orchestra. 5、Essential items for any orchestral playing.