Why is my tendon bad?

First of all, the material of the slingshot should be good, the contact with the slingshot should be smooth, and it can be oiled.

Secondly, the life of the reinforcement is very long, and the good reinforcement is stretched many times, while the bad reinforcement is stretched few times.

Third, when making tendon epithelial pockets, try not to scrape the tendon with fingernails or splayed sleeves, otherwise it will break easily.

Fourth, temperature and light will affect the service life of rubber bands.

Besides, tendons are consumables, no matter how well they are maintained, they are easy to break down. We'll change it then.