Office chair footrest with 6 height gears adjustable 3.5", 4.3", 5", 5.9", 6.7", 7.4" Provides 6 different angles, easy adjustment; Ideal for shorter people whose feet often dangle from their chairs. It facilitates active sitting that keeps your legs moving and blood moving. Help you keep comfortable. Portable&Versatility: Lightweight, portable and detachable design enable ergonomic support wherever you go. Helps correct sitting posture and improve work efficiency.