1 Design philosophy: The muscle massager roller is made of high-quality, durable material. The special textured pattern and massager bump will fully and intensely transform pressure on your designated body. The additional massage ball allows you to. 2 Easy to use: The muscle massage ball could easily apply, and you could adjust the pressure to satisfy various body locations, such as legs, arms, forearms, elbows, calves, to reduce tension, stress, and pain, and promote blood circulation. 3 Easy to carry: The lightweight and portable massage ball equipment can be easy to carry and slides in your bag while you are doing cardio activities, such as typical workout, soccer games, swimming, and etc. 4 Intention: The muscle ball rolling is a self-myofascial release (SMR) technique. It can help relieve muscle tightness, soreness, and inflammation, and increase your joint range of motion. Foam rolling can be an effective tool to add to your warm-upor cooldown, before and after exercise. 5 Perfect gift: The muscle ball is the perfect gift for sports lovers or outdoor sporters. Keep them enjoy a healthy life.