Features: 1. It can moisturize the skin and ease the mental stress, through the massage and hot compress, it can strengthen the bleed circulation in the body, and accelerate the body metabolism. 2. With essential oil, it can relax nerves, relieve stress and improve sleep quality. 3. It can moisturize the skin, restrain the pores and tighten the skin. 4. It is a complete foot massage set, can be used to massage the arch of the foot, toes and legs. 5. Suitable for professional use or household use. Specification: Item Type: Massage Stone Material: Stone Quantity: 20Pcs/Set Color: Black Weight: Approx.1700g Type QuantitySize(cm / inch) Suitable for Large Oval4 7.5 * 5.5 * 2.75 / 2.95 * 2.1 * 1.1 shank, feet Middle Oval4 6.5 *4.5 *1.6 / 2.5 *1.7 * 0.6instep, ankle Small Oval4 3 *4 *1.75 / 1.2 * 1.5 * 0.7heel, sole Small Oval 83 *4 * 0.8/1.2 * 1.5 * 0.3between toes Package List: 1 x Set of 20Pcs Massage Stones Package List 1Suitable for professional use or household use. 2It is a complete foot massage set, can be used to massage the arch of the foot, toes and legs. 3It can moisturize the skin, restrain the pores and tighten the skin. 4With essential oil, it can relax nerves, relieve stress and improve sleep quality. 5It can moisturize the skin and ease the mental stress, through the massage and hot compress, it can strengthen the bleed circulation in the body, and accelerate the body metabolism.