Double Bass Drum Pedals, Len and widen Bass drum pedal, Double Chain Drum Step on Hammer for Drum Set and Electronic Drums. Item Weight: 11.36 pounds. Package Dimensions: 14.65 x 10.63 x 8.11 inches. Item model number: JD11. Date First Available: May 5, 2025. Material Type: Alloy Steel. Adjustable spring tension-the width between the two drum pedals can be adjusted to 12 inches -22 inches. You can adjust the tension through the spring to suit your playing style. Easy to adjust-the hammer head is made of high-density wool felt and metal rods. The double bass drum pedal and the bottom drum can form a better bottom drum resonance, easily bringing you a comprehensive and powerful drumming experience. Easy to install-this is easy to set up and very simple. Just connect the rod to the two pedals and tighten the screws, done! You can beat the drum in 5 minutes. The main picture video has an installation method and a static experience.