Features: Massage Stones: Made from natural lava stones, these massage stones are crafted from basalt material known for excellent heat retention, ideal for spa and massage therapy applications. Ergonomic Design: The flat, smooth surface allows close contact with the skin, promoting deep relaxation for facial and body massage, helping to soothe muscles and improve blood circulation. Usage: Suitable for professional spa treatments or at-home use. Ideal for individuals who spend extended time on computers or mobile devices. Versatile Temperature Application: Can be used warm or cool. Heat the stones in warm water for a relaxing, warming massage experience, or chill in the freezer or cold water to help calm and refresh the skin. Specifications: Material: Natural basalt stone Size: 55 x 38mm Heating Instructions: 1. Soak in hot water for 1–3 minutes (recommended method) 2. Avoid microwave heating to prevent damage Cooling Instructions: 1. Wrap in plastic and place in the freezer (recommended) 2. Alternatively, soak in cold water for at least 5 minutes Package Includes: 2 x Massage Stones