Individuals who work out with weights know the benefits of having barbell collars. The main advantage of these collars is to keep the weights secured on both ends of the bar. It is not uncommon for athletes and workout buffs to favor one arm over the other. For example, a person's right arm may be stronger than his left. Hence, as he lifts the bar overhead, the bar may not be completely level.
And weight plates can easily slip off the bars and cause several problems. One problem is that a sudden movement as such can cause an injury. A person performing squats may pull a muscle in their hip or back, for example. People using standard barbells may also drop weight plates on their feet when performing a exercise while standing up. Collars for barbells also prevent weights from falling and damaging floors or carpeting, especially for those exercise in spare rooms or offices.