Metal D-Ring Yoga Strap の説明 from Pro Source
The ProSource D-Ring Yoga Strap assists you in reaching further in deep stretches without muscle strain. By extending your reach, it safely helps you progress and increase flexibility so you can hold stretches and poses longer. A sturdy D-ring buckle holds the strap securely, and the 8 foot cotton material is long enough to suit anyone. Though popular for yoga, the strap can be used for general stretching purposes before and after any workout for better flexibility and range of motion.