Adapt to different direct drive or Computer button sewing machines, such as 373D, 438D, 1903A, etc;
Sewing area: 8-28mm, Special ordered range can reach 5-35mm. Suitable for 4-hole button, 2-hole button and three hole buttons or other non-standard buttons;
Each machine standard with 14 different mounting plates, to replace 2 screws easily for positioning different buttons.
Easy installation, Easy operation, Faster response, Longer service life, and 15% more efficient than traditional machines.
