According to fitness experts, these balls are as ubiquitous as the squat racks and mirror selfies at gyms. But, depending on the users’ sensibilities, they can either be a logical evolution of balance or a gimmick, primed to go the way of shaking weight. However, some common benefits and proven effectiveness of these balls include the fact that it improves balance and is helpful for older people. Plus, they are ideal for people who are looking for fewer impact exercises.