Standard Double-Bass Drum Pedal. Item dimensions L x W x H. 7.1 x 9.1 x 15.1 inches. HP30TW double pedal, DS30 beater. Chain-drive Double-bass Drum Pedal with 2-way Beaters. Power Glide cam adds power and speed to the end of each stroke Beater angle adjustment Power glide Spring tight. We offer the best prices around on high quality products. Our E-store includes media such as books, movies, music and games while offering electronics, toys, sporting apparel, clothing, tools, general home, garden items and more. We are always working hard to ensure your package arrives as soon as possible. We do not accept P. Please provide a physical address. We try our very best to make sure every customer is completely satisfied. If there’s a problem, message us! We’re happy to help.