Casio SP20 Sustain Pedal The Casio SP-20 is a traditional piano-style pedal that plugs into your Casio keyboard or digital piano. It is designed to sustain notes in the same way as the damper pedal on an acoustic piano. Similar Products to Consider Casio SP-3R Sustain Pedal for Casio Keyboards The Casio SP3 Pad Style Keyboard Sustain Pedal enables you to get more realistic piano sounds by giving you control over the sustain of each note or chord. Casio ARST Single X Keyboard Stand The Casio ARST Single X Keyboard Stand offers great durability and sturdiness at a fantastic price. Casio ARBENCH X-Style Adjustable Padded Keyboard Bench The ARBENCH supports up to 250 pounds and has a black padded seat cushion that makes playing your keyboard comfortable.