HQRP Elastic Dust Cover w/ Bag (Black) for Korg Havian 30 / Krome / Kronos X / KROSS88BK / Triton Extreme Electronic Keyboard Digital Piano + HQRP Coaster HQRP&reg; 88 Keys Keyboard Dust Cover, Black plus HQRP&reg; Coaster; HQRP dust cover is made of spandex and having exceptional elasticity is suitable for most 76-88 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!