To fix the chicken, use a toothpick or a metal wire to pierce the chicken's nostril. Note that the cartilage in the chicken nostrils must be pierced, otherwise the plug-in will be difficult to penetrate, and there may be a small amount of bleeding during the process. Please wipe it with alcohol cotton.
Grasp the protruding part of the chicken glasses with your left hand, insert the plug-in into the right hole of the chicken glasses and align the chicken nostrils with your right hand, then insert the lens into the left hole of the lens.