HQRP Elastic Dust Cover w/ Bag for Casio WK-245 / WK245 / WK-6600 / WK6600 / WK-7600 / WK7600 Electronic Keyboard Digital Piano + HQRP Coaster HQRP&reg; 61-76 Keys Keyboard Dust Cover, Black plus HQRP&reg; Coaster; HQRP dust cover is made of spandex and having exceptional elasticity is suitable for most 61-76 keys keyboard models. It is especially designed to protect your instrument from dust and moisture. The dust cover is equipped with a special bag having a plastic cord and locking clasp for easy storage. 200 days warranty!