Color:Blue Product Specification: Color: Blue Red Green Purple Material: Medical magnet, ABS, NBR Size: 6.6"W x 15"L x 10"W Suitable for: Muscle Relaxation Back Massage & Support Lumbar Back Pain Posture Correction Muscle Spasms Lower and Upper Back Pain Relief Spine Corrector Tips for using : 5 minutes, once or twice a day, for a minimum of 3 weeks consistently, to experience the best results. Package Content: 1x back stretcher 1 x User manual How to use: 1. Place the lumbar support on flat. 2. Adjust the angle you need 3. Lying slowly on the lumbar support 4. Align the spine with the central silicone pad 5. After stretching. Sit up slowly. Hold for 30 seconds before standing up