This is a door catch kit, and it is designed for use with your dryer. On your appliance you will find both a strike and a catch. These two parts work together to keep your dryer door closed. This kit includes two strikes, three catches, and a set of instructions. Each of the door catches included have a different tension. Make sure you use the one that matches the existing catch on your appliance. All three of these are color-coded, and have a number on the back. The instruction sheet will tell you which catch you need to use for your specific model type.