The ball loses air on its own, in a phase when I left it on the side one afternoon and it noticeably lost air to a great extent. Its colors faded the second time I played with it to an extreme degree. The spikes got damaged quite quickly and today, even though I have played with it 10 times, its valve broke and it lost air along with it. I have really gone through several balls, but unfortunately, this one is by far the worst. It had decent bounce, but many issues in handling. It is a hard ball without much durability, as its rubber deteriorates quickly. Give something more and get a good ball. I have had balls for 3 years that haven't been damaged by dogs at all. This one really disappointed me within a month, and I truly said that it's the last time I don't test a ball in my hand first. Up close, they are just worthless balls. It's likely that the factory's production line is to blame, as others also criticize them.