Spec:
Item Type: Bobbin Winder
Product Material: Plastic, Stainless Steel
Product Specification: 1 Piece
Product Use: Household
Applicable Scenarios: Most Scenarios
Battery: 2 x AA Batteries (Battery Not Included)
Product Size: Approx.8.5 x 13.7 x 9.3cm / 3.3 x 5.4 x 3.7in

How to Use:
1. Remove the battery cover from the bottom of the machine.2. Insert 2 x 1.5VAA batteries (not included) as shown in the picture, then reattach the battery cover. Or plug the USB data cable into the Type C socket and supply power through the DC5V power adapter. Note: Use only non rechargeable batteries.3. Pull up on the locking tab to open the top cover.4. Raise the spindle to the fully extended position and place the spool on the spindle.5. Following the numbers and direction arrows, pass the thread between the eyelet and the two clips of the suture tension disc. Pass the end of the thread through the hole in the bobbin, insert the bobbin into the winding shaft, and turn the bobbin slightly until the spring on the shaft snaps into place.6. Make sure the bobbin bar is installed between the top and bottom rims of the bobbin.7. Press the ON button to start. Winding stops automatically when the bobbin is full. If you want to adjust the winding amount of the bobbin by yourself, press ON when the winding automatically stops. Keep pressing the key until you need to release the ON key.

packing list:
1 x Electric Winding Machine
1 x English User Manual

Notice:
Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.