OPTP The Original Stretch Out Strap with Exercise Book, USA Made Top Choice Stretch Out Straps for Physical Therapy, Yoga Stretching Strap and Knee Therapy StrapTop Choice Stretching Strap for Physical Therapy: The OPTP Stretch Out Strap was the first stretching strap on the market in 1993 and is still recommended by physical therapists and athletic trainers. Versatile Stretch Strap: For yoga, physical therapy, as a leg stretch strap, knee and lower body exercise trainer, resistance stretching tool, upper body exercise, Pilates and more. Ten Loops, 6' Long: Unlike imitation bands for stretching, this woven