What is the Advantage of Massage Slipper? 1. Promote blood circulation and metabolism. Relief Plantar Faciitis, high heel foot 2. Release aches pain such as headaches, migraines, neck pain, foot pain, backaches. 3. Promotes better blood flow to enhance overall health 4. Reduce nerve tension, improve sleep quality Item Type: Massage & Relaxation Application: Foot Color: Brown Material: Artificial PU Size: S, Suit for Size 36-38 M, Suit for Size 39-41 L, Suit for Size 42-43 XL, Suit for Size 43-44 Tips: This is Acupressure massage sandals NOT FOR all day wear. If you are new for foot massage, you may feel painful in the beginning few days. Please add socks and start with 5 minutes first. Gradually add the wearing time to 15-20 minutes per day. <br><br>Package Contents: 1 pair * Massage Slipper<br><br>Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.