Acculite Sustain Feet (Patent Pend): Standard on all Atlas Classic stands, Acculite Sustain Feet are designed to increase placement versatility compared to other flat based stands. Their dual-slot design allows for unrestricted, overlapping positioning using alternating heights on companion stands. Acculite's bottom chamber further creates a sonic barrier between the stand and the floor, improving resonance from mounted cymbals, toms and snare drums