The product surface is covered with a protective film to prevent scratches and damage; remove the protective film before installation. Country of Origin: China. Weight: 700 grams per set. Installation difficulty: Very easy to install. DC resistance: N (neck) 7.75K? ; M (middle) 9.18K? ; B (bridge) 14.55K? . Hole spacing: N 50 mm; M 50 mm; B 52 mm. Application range: Suitable for most Fender (FD) style guitars. In addition to the original functions, the single-pole double-throw switch introduces the following new features.