✅ QUALITY MATERIAL: Lacrosse and double balls are made of silicone, this makes the balls of the right density for an effective and pleasant massage, without being too hard or painful. Ideal for spouses: perfect before training to prepare the muscle for effort by improving movement, flexibility and avoiding injuries. After training to relax and relax muscles, accelerating muscle recovery. Double ball: The distance between the two balls allows targeted muscle self-massage along the entire spine reaching the stabilizing muscles surrounding the spine and vertebrae. Perfect for lower back, neck pain and to prevent back pain. SWEET BALL - Reach specific points throughout your body: back, legs, arms, shoulders, neck, buttocks, loosening contractures and trigger points. Experience a feeling of well-being, freeing yourself from pain. Exercise manual in Italian: Inside the package you will find a QR Code that will allow you to access the training program with exercises and a guide on myofascial release and trigger point therapy. Thanks to the guide you can make the most of the massage balls and discover their countless uses, consulting the manual from the comfort of your mobile phone during workouts.