Gravity GR-GFMSEAT1BR Height Adjustable Stool w/ Foot and BackrestLong rehearsals or gigs usually mean hours of standing for musicians whether on the microphone, guitar or other instruments. A flexible, comfortable standing aid ensures increased comfort, preventing early fatigue and relieving back strain. The standing aid FM SEAT 1 BR by Gravity is suitable for universal use on stage, in the rehearsal room or at home while practising; for guitarists, bass players, pianists, string players, wind players and singers.