SUNLAND Yoga Stretching Belt Fitness Training Strap Belt with Metal D-Ring and Leather Accents Length: 6 feet . Extra thick belt with leather accents and logo for better performance Coarser Metal D-rings (5mm diameter) can fix your belt better without slipping. High quality, extra durable fabric, Increases strength and endurance, helps to sustain proper form in poses for longer time Improves and increases your flexibility, gradually you can build up flexibility by moving your arms further on the strap Not only great for yoga, but can also help with physical therapy