Features: Materials: The dual pedal is made of environmental ABS very durable. Its opening and closing part can be repeated opening and closing 20000 times based on lever principle. -skid Bottom: The bottom of each sustain pedal is equipped with four -skid silicone pad which makes the pedal not sliding during use. Silent Design: Adopt the silent design. Only make a low decibel ticking sound during use. Diamond Lines: With exquisite appearance. After many design reform combining with several generations of pedal design styles finally create the diamond-lines style in line with the preference of most users. 3.5mm Audio Head: 3.5mm audio head can be perfectly combined with hole position of musical instruments no loosening no electric leakage. Specifications: Model: JS-01-3.5 Product Name: Universal dual pedal for musical instruments Material: Environmental ABS Color: Black Applicable Equipment: For portable roll-up piano electronic keyboard elctronic roll-up drum and other musical instruments Connection Interface: Dual pedal / Dual interface Product Applicable: Generic brand model Product Effect: Sustain / mute effect Extension Cable Length: 1.8 meters Item Size(each one): 10 * 7.5 * 3cm / 3.9 * 3 * 1.2inch Item Weight: 160g / 5.6oz Package Size: 10.5 * 9.5 * 7.2cm / 4.1 * 3.7 * 2.8inch Package Weight: 210g / 7.4oz Packing List: 1 * JS-01-3.5 3.5mm Interface Dual Sustain Pedal