Do all keyboard stands fit all keyboards?
The On Stage Classic is an single X-style stand that can be adjusted to fit just about any keyboard out there. So, you won't have to invest in another keyboard stand once you outgrow your instrument collection. Basically, the same stand can be used on multiple keyboards.
Is keyboard stand necessary?
A dedicated stand is very important as it will be adjustable for height enabling you to maintain the correct posture when playing. There are various types, the most popular and least expensive being an X frame, so called because it is in the shape of an X.