Enhance the comfort of your desk chair with fixed height T-arms, designed specifically for Alera Interval & Essentia Series Chairs. The stationary arms stay in place for consistent support. Adding arms to a desk chair helps improve posture & reduces strain on neck & shoulders. Constructed with soft PU armcaps for maximum comfort. Simple to use design attaches with ease. Series Name: Alera Essentia Series, Interval Series; Color: Black; Color Family: Black; Material(s): Padded Metal; Polyurethane.