Anti-skid Bottom: The bottom of the is equipped with four anti-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. Product Name: Universal single pedal for musical instruments Applicable Equipment: For portable Foldable piano, electronic keyboard, elctronic Foldable drum and other musical instruments Connection Interface: Single pedal / single interface Colour:black Material:plastic Size:3.5mm Package Contents: 1 x 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.