Child safety locks at the store are over priced and useless. Either your child discovers immediately how to bypass it or they just plain don't work . Everyone has a picture hanging kit laying around and probably a lot of these little hangers you otherwise wouldn't use ! Let me tell you I am the very proud father of 3 highly intelligent children that figure out everything I do the first time they see me do it and they can't open these only the oldest can at 4 years old now . They know how they work but little fingers can't turn them .
Choose a spot to drill out a small hole right next to the corner of the cabinet or the center of the drawer.