Excellent "tsubo-oshi" (acupressure) product that can pinpoint and stimulate the shoulder blades, back, and neck, which are difficult to reach. Set of 2. Great deal! ● Sturdy steel type. ● The flexibility of the arm allows for adjusting the pressure. ● Stimulates muscle stiffness comfortably at specific points. ● Easy-to-grip handle. ● Easily reaches the back. Approximately 32cm long, 20cm wide. Also selling individually. Please take a look.