Wrestling holds are techniques used by wrestlers to gain control over their opponents. Headlocks, which consist of a wrestler wrapping their arms around the opponent's head, are a common wrestling hold. Nelsons, which involve a wrestler trapping one of their opponent's arms between their legs, are also popular. Locks involve a wrestler trapping both of their opponent's arms and are often used to set up other holds. Hammerlocks, which involve a wrestler trapping one of their opponent's arms behind their back, are a more advanced technique.