A cork massage ball is a small, firm ball made from natural cork, designed for self-massage and muscle relaxation. It helps to target specific areas of tension, improve circulation, and release tight muscles. The cork material provides a slightly textured surface that enhances pressure during use, making it ideal for relieving soreness in areas like the back, shoulders, and feet. It’s eco-friendly, durable, and lightweight, perfect for on-the-go muscle relief.