This unit is new, and still in its sealed bag. With original box which is worn. 

The Roland APC-33 Clamp Set is designed to mount digital percussion modules such as the SPD-20, TD-10, TD-7, or TD-5 onto tubular drum stands or supports. It can also be used to attach an SPD-Series percussion pad to a conventional cymbal stand for use with a V-Drums or acoustic drum kit.

This clamp set includes a stabilizing fixing plate, an articulated arm, and a universal clamp, allowing it to attach to any straight cymbal stand or pole.

The Roland APC-33 Clamp Set is compatible with Roland percussion multipads or percussion modules and can be attached to various types of stands or poles