Bass Drum Kits: Bass Drum Foot Pedal Spring with rings Springs Tensioner for Drummer. Quality Material: The Drum Foot Pedal Parts are Made of High Strength Metal, Lasting Elasticity, Durable in Use. High Performance: The Drum Foot Pedal Parts Are Rust Resistant, High Tensile Strength, Long Service Life. Easy to Use: The Parts Easy to Assemble and Use. Suitable for: Bass Drum Foot Pedal Accessory. Colour: silver Material:Metal Package Contents: 4 x Drum Pedal Spring Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.