1. First buy the original factory to replace the cutter head, then hold the electric clipper tightly in front of you with both hands, and press the cutter head down with two thumbs to take it off.

2. Then turn the electric clipper upside down with both hands, and clamp the lower part of the replacement cutter head into the space where the cutter head is placed in the lower buckle.

3. Then press the upper part of the cutter head with both hands and thumb. The cutter head can be replaced.