What's in the box:

Universal Piano Sustain Pedal Keyboard Foot Damper Pedal with 6.35mm Plug for Casio Yamaha Roland Electronic Organ MIDI Keyboards Digital Pianos (Black)

Features:
Sustain pedal designed for electronic organ, MIDI keyboard, digital piano, etc.
Standard 6.35mm(1/4") plug, and the connection cable is about 1.6m/ 5.2ft long.
With polarity switch to convert positive and negative current easily.
High gloss alloy pedal, rust and corrosion protection.
Full-covered anti-slip pad, prevents the pedal form sliding under any circumstances.

Specifications:
Material: ABS + alloy steel
Plug: 6.35mm
Cable length: Approx. 1.6m / 5.2ft
Pedal size: 25 * 7 * 6.5cm / 9.8 * 2.8 * 2.6in
Pedal weight: 325g / 11.5oz
Package Size: 28 * 7.5 * 7cm / 11 * 3 * 2.8in
Package Weight: 410g / 14.5oz

Note:
The digital piano showed in the picture is not included.

Package List:
1 * Sustain Pedal