A Tuning Fork - "A" 440 Hz with Soft Shell Case & Acoustic Guitar Pickup Piezo Transducer for Guitar Violin

Applicable instument: guitar, violin,ukulele,mandolin
A fine quality Nickel plated tuning fork.
Works great for Violin, Mandolin, Guitar. Tap it on the table set it on the instrument top and tune your "A"string to 440 hz.
A necessity for every player Small and accurate for pefect tuning every time
Frequency: A-440
material: metal/ABS
color: silver & black
Installation instructions:
1.Remove the plastic film from the back of the transducer to expose the adhesive.
2.Place the transducer through the sound hole to the lower part of the front body where the guitar produces the best response
3. glued to the bottom side, 6.35 single audio is fixed at plastic film.
Package included:
1* pickup main part
1* glue block
1* tie
1* gasket
2* nuts
1* Tuning Fork
Only the above package content, other products are not included.
Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.