Kun replacement shoulder rest insert for foot double hole black suitable Super

Original Kun replacement part: Insert in black with double hole. Suitable for: Kun Super shoulder rests for 4/4 violins, 3/4–1/2 violins and violas. Position: Inserted on the underside of the shoulder rest on the wide side. Easy to use: Quick to replace, can be fitted without special tools. Reliable: High-quality workmanship ensures a secure hold and long service life.