The KB-50 from Music Store is a keyboard stand attachment for all normal keyboard stands with an external tube diameter of up to 25 mm. The attachment adds an extra level to the stand an additional level on which keyboard instruments can be placed. The depth of the support arms is 30 cm. After assembly, there is about 29 cm of space between the two levels. The width is variable between 40 and 65 cm, depending on the width of the keyboard stand. keyboard stand. The assembly is self-explanatory and can be done in a few minutes without the use of tools.