Sustain pedal ground surface non-slip upgrade: The bottom surface of the damper damper pedal is improved and enlarged (9.68*4.53 inches), and 2 non-slip rubber pads are added to increase the contact surface of the damper pedal, so that the anti-slip effect is better fixed in place , no matter how crazy you play. HIGH QUALITY: This electronic digital keyboard sustain pedal adopts the principle of ergonomic design, and upgrades the size closer to the foot, making the universal sustain pedal experience more comfortable. The surface also adopts the anti-slip stripe design of the car brake pedal, which increases the aesthetics and practicality of the keyboard pedal. High-quality materials make the case sturdy and durable. The internal material switch and spring life can reach 10,000 times. UNIVERSAL COMPATIBILITY: The Acoustic Piano's Sustain Pedal with Polarity Change Switch works with most electronic keyboards, synthesizers, digital pianos, and tone modules. The piano pedal includes a 6.3ft cable with a 1/4" plug to place the pedal where you want.in, the black pedal is very stain resistant and easy to care for.