Eaden Fascia Ball Foot Massage Ball Relax Muscle Fitness Yoga Cervical Spine Rehabilitation Ball, Specification: Double Ball (Black)

1. Material: silicone

2. Weight: about 150 grams for a single ball, about 300 grams for a double ball

3. Size: the diameter of a single ball is about 6 cm, and the diameter of a double ball is about 13x6 cm.

4. Application: exercise fitness, stretching and soothing, relaxing muscles, etc.

5. Features: diamond pattern design, beautiful and delicate, deep massage, relieve pain, solid silicone material, good elasticity, moderate hardness, light and easy to carry