88 Note Keyboard Case by Road Ready. The RRKB88W features our exclusive Z-lock Foam System that allows you to customize the inner length, width and height of your Road Ready case ( length adjustable from 51.5″ to 58″, depth from 10.5″ to 21.5″, height from 4.5″ to 6.75″) to accommodate virtually any model of Roland, Yamaha Korg, EMU and other 88 key keyboards. Simply lock or un-lock the layers of Z-Lock Foam to create your perfect custom fit. And for sleek, stealth mobility we equipped each case with our unique low-profile wheels. Upgrade your keyboard not your case.