HQRP Elastic Keyboard Dust Cover for Casio 76-Key 88-Key PX-300 PX-320 PX-360 PX360 PX-560 PX560 WK-110 Digital Piano Synthesizer + HQRP Coaster HQRP&reg; Keyboard Dust Cover plus HQRP&reg; Coaster; Dust Free Spandex Material Stretches to fit 76 or 88-key Keyboards; Comes Complete With a built-in bag, Plastic Cord and Locking Clasp; 200 days warranty!