The solid double chain design makes your drum pedal more durable and easier to reach the speed you want. Adjustable angle spring tension system, you can adjust the tension through the spring to suit your playing style. Non-slip design on the bottom of the bass drum pedal:There is a non-slip rubber pad at the bottom, which can increase the friction between the pedal and the ground and prevent the pedal from sliding. Adjustable angle cotton felt hammer, made of high-density felt and metal rod. Easily bring you a full, powerful, rhythmic sound.