I purchased this about six months ago and used it for a month, but it didn't suit my playing style, so I haven't used it since. I recommend this for those who play metal and want to do fast double kicks. As the photos show, it has a double chain, and there are no noticeable rust or scratches. The surface of the beater head that hits the kick drum has some signs of use (photo 2). Please feel free to ask if you have any other questions. Ergonomic design silver single pedal with adjustable spring. - Model: Single Pedal - Color: Silver - Material: Metal - Features: Adjustable Spring - Design: Ergonomic Design - Brand Name: Speed Cobra