Multipurpose yoga assistance for shoulders, back and legs. It helps shoulder opening, expansion, body shaping, and provides massage functionality. Easy to use First twist the rocker in pairs, then insert the rocker into the button to fix it, and finally place the rocker behind you to slowly tighten your head and keep it tight. and reliable Made of steel tube with EVA foam. Smooth surface does not hurt the skin, provides a sturdy and strong feel, and is comfortable to touch. Application Multipurpose yoga training stick to build the strength of spine tendons and ligaments, correct the upper back postures and hunchback, and improve temperament. Use scenarios Daily at home: include in warm up or cooldown routines to open shoulders and improve upper back alignment. Office breaks: quick stretches to relieve shoulder tension and promote better posture during long desk sessions. After workouts or yoga sessions: use for targeted spine and back postural work to reinforce gains and enhance overall flexibility.