Precautions? 1. When using a exercise hoop, please keep it steady, and it is best to wear suitable clothes for exercise. 2.Exercise 30 minutes a day, exercise 1-2 times a day. 3. Don't put the exercise hoop around your neck or other sensitive parts. 4. Not recommended for the elderly. 5. Children should be used with an adult. 6.Pay attention to the gravity ball during exercise and avoid contact with other people or objects. 7.Before use, please adjust the size of the exercise hoop to fit your figure.