ARC-TRI provides additional spinal support to help maintain proper spinal alignment and posture, especially for beginners or users with spinal problems. The spinal support frame stabilizes the spine for exercises on mats and other equipment. It can also be used to help students develop proper abdominal exercise posture, which can easily adapt to different training needs and meet people with special needs, making it an important piece of equipment at work. SPECIFICATIONS Material: Maple Leather: Microfiber Leather Usage: Home Exercise Fit Body Sturdy wooden construction With dense foam padding