Skull Crushers are a popular strength training exercise primarily targeting the triceps, the muscles located at the back of the upper arm. This exercise is typically performed lying on a bench, using either a barbell or dumbbells. The movement involves lowering the weights towards the forehead and then extending the arms back to the starting position, effectively isolating the triceps for maximum engagement. To perform Skull Crushers safely, it's important to maintain proper form. Keep your elbows close to your head and avoid flaring them out, as this can lead to injury. Incorporating Skull Crushers into your workout routine can help improve upper body strength and enhance overall arm definition.