I'm selling this because I ordered the wrong size. [Japanese Genuine Product] Trigger Point Massage Ball MB Series / Myofascial Release Massage Stretch Ball [Size] Style: MB1 (Diameter 6.5cm / Soft / Neck, Back, Lymph Nodes, Hips) _ Pattern Name: Single Item [Product Description] Product Planning: USA Package: Japanese Diameter: 6.5cm Weight: 22g For waking up your body in the morning, when you feel tired at your desk at work, for massage at home, and for myofascial release (warm-up, cool-down, massage) after returning home.