This ergonomic under-desk footrest elevates your legs to improve posture, supporting ankles, knees, waist, and back for all-day comfort. The dual-sided design allows smooth rocking with a ±20° tilt or can be locked at a preferred angle for stability. Its textured surface and central massage rollers provide soothing relief while working. With three adjustable heights (3.9”, 5”, 6”), it fits various chairs and users. Preassembled and equipped with non-slip pads, this footrest stays securely in place and is ready to use immediately.