No Arms Allows the chair to fit easily under a desk or table, and supports a variety of activities that require freedom of movement. Fixed Arms Arms are set at 8.6" above the seat and cannot be adjusted. Ideal for short-term-use areas like conference rooms, multi-guest workspaces, and more. Leaf Arms: Aiming to reinvent the task chair arm, Studio 7.5 developed Cosm’s Leaf Arms, which provide a large, comfortable resting place for your elbow. The soft but firm cradle design stabilizes your body and allows you to place your elbow wherever it’s most comfortable, and the fixed design turns the arms into handles that make getting in and out of the seat easy.