Product Description Specifications: 38-39, 40-41, 42-43 Color: White, brown Material: EVA Package Contents: 1 pair of massage sandals and slippers 1. Relieve: Designed to relieve foot/hall pain and tension caused by arthritis, neuropathy, and other conditions. Perfect health-related relaxation accessories for your family, friends. 2. Relax: Revives tired, sore, plantar fasciitis feet. Promotes better blood circulation to improve overall health. 3. Gentle Reminder: These are specific foot acupressure stimulating slippers, which may be uncomfortable at first. If you're looking for slippers to wear all day, avoid these. 4. Size: Significant redesign for adjustable width. If you're between sizes, choose a larger one. 5. Suitable and Portable Foot Massage: Perfect for feet of all sizes. The foot massager roller is large enough for both feet but also compact enough to easily store or carry in a small bag. Our massage is portable enough to use when traveling, working, or watching TV. Take it wherever you go