Specifications:This foot stool has the ability to massage your feet, blood circulation and relax your feet as it adopts ergonomically, circular bumps and massage rollers design.Thanks to this foot stool, you will have a comfortable working space because it can help to bad posture, relieve your shoulder and back pain.Made of plastic, it is very durable and wear resistant.It is suitable , office, work , dorm and so on.Item Name: FootstoolMaterial: Plasticcolor:BlackFeatures: Massage , Ergonomic Design, AdjustableSize Details:40 x 27cmPackage Contents:1 x FootstoolOnly the above package content, other products are not included.Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.