A barbell collar. The barbell collar may have a plate and at least two weight bars, a first weight bar and a second weight bar. The plate may comprise a barbell engagement portion, a heavy arm and a light arm. The heavy arm weighs more than said light arm. The barbell engagement portion is configured to engage with a barbell. Each of the at least two weight bars may be attached to each of the at least two arm portions of the plate. The at least two weight bars may be adapted to engage and hold one or more weights.