1.Convenience-Weight 1KG,no need to fill water or sand,saving your time and your hands will be clean!
2. Little-Only a little bigger than a tennis ball,save space,easy for storage.
3.Good experience:Anti-winding design,and we use the High Quality ball which is better than others.
4.Easy to carry:Can be carried with only one finger.
5.Economic:Iron base,longer lifespan.
6.Our String is 4 metres which is longer than others.