Model:WF-20SH Series Ukulele Finger Sand Hammer
1、Ukulele Finger Sand Hammer is latest desigh product from KAVABORG company.
2、Its feature is easy to install ,also you can adjust suitable size with your finger.
3、When you playing ukulele ,as your finger playing which can issue the corresponding rhythm .
4、Ukulele Finger Sand Hammer has applied for a patent