Manufacturer Developed by author of the copies and CEO of the Posture First these massage and stretching balls are ideal for improving sleep and These

Voltage Compatibility】 When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction.

【Plug Type】 Our products use Japanese plug types (A or B type). Please use a conversion adapter if necessary.

【Important Note on Transformers and Adapters】 A transformer adjusts voltage to match your device’s requirements. A conversion adapter only changes the plug shape and does not adjust voltage. Using only a conversion adapter without a transformer may result in damage to the product.

【Liability】 We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer. Gel-filled balls (2 balls per set). Temperature changes may cause the balls to feel like they have less air, but this does not affect their usability. An air pump is not included. An air pump for a soccer ball or other similar item can be used instead. Lov-a-Ball is a popular J-Circuit original product used for self-care to relieve stiff shoulders, neck, and lower back pain. This small ball, about 9cm in diameter, can release muscle tension and relieve stiffness simply by lying on it. It has more than just a stretching effect, and at 420g it's easier to hold than a plastic bottle. It fits comfortably in your hand, making it a versatile ball that can also be used for muscle training and grip exercises. When you hold a lava ball, you'll be surprised by its indescribable soft, squishy feel and weight. It's not light, it's heavy. Each ball weighs approximately 420g. It contains a liquid gel, which can be used not only to loosen up your body, but also for easy training at home. When you put your weight on the ball, it bounces back, thoroughly loosening up your muscles. You'll notice amazing results within just 2-3 minutes. It's so easy to use and so pleasant you'll never want to put it down. Experience a level of relaxation you've never experienced before. The problem is that only people who pick it up will understand this. Those in the know know that this ball is extremely useful for relieving shoulder stiffness. People who massage with tennis balls or golf balls just repeat the cycle of "pain" → "muscle tension (stiffness)." Also, people who go to chiropractic clinics or massage parlors to relieve shoulder stiffness are only becoming acquainted with the pain, and are not actually resolving the underlying problem. We would also recommend this to moms who are struggling with childcare and stiff shoulders! If you keep it at home, it won't get in the way as a toy for infants and toddlers, and its unique feel and weight may help improve the motor skills of children in their golden years. [Example of exercise] ・Natural release (Stretching/static stretching using only body weight) ・Dynamic stretching using a ball and moving the body ・Improvement of unpleasant symptoms (stiff shoulders, back pain, insomnia, etc.) ・Muscle training and grip exercises ・Stretching and exercising the fingers and soles of the feet ・Posture improvement [Stretches for different symptoms] ・Stiff shoulders and neck ·lower back pain ・Knee pain Swelling ·constipation ·insomnia