For SPIDER PRO keyboard stand.
This additional arm set (SET B) is used with a SPIDER PRO keyboard stand, allowing you to add a 3rd keyboard to the rig.
K&M 18866 is extendable, allowing for support depth of 290-470mm, and support width of 670-980mm.
The 15° tilt angle places your 3rd keyboard at an easy-reach position for face-melting lead breaks.
