Sungrip is known for its durability among plastic snaps, and is used in products with a service life of over 10 years. In addition, since the textile is stretched while it is being pulled out, the thread is less likely to break, and the spring and the back of the stud dig into the textile, fixing the snap and textile together. This makes it harder for the snap to turn or come loose, making it easier to fasten and remove. Manufacturer's official website