Ergonomic Foot Rest - This foot stool under desk is designed to improve posture and circulation and reduce pressure by keeping feet and legs elevated for less strain and fatigue. Adjustable Height - Manually adjustable to 3 different heights (11cm / 14cm / 17cm), enables you to stretch legs for increased circulation Multiple Tilt Angle - Tilts ±30° to support your legs at your preferred angle. You can rock back and forth to increase the blood flow to your legs and body (*Some noise is to be expected when you rock the top board of item. It is not a defect) Non-slip Surface - Non-skid rubber enhances overall stability. High-impact material with geometric circular bumps for feet massage and stress reduction Great as Gift - Perfect home accessories and gift for the office desk, chair, or couch