Product Title:Boxing Sanda Pear Ball Speed Ball Adult Vent Ball Universal Suspension Rotator Metal Combination Fitting Gym Training Set Ns2. Features: 1.Use this punching bag hybrid to time your hits and blocks and to improve your power punches. This slip ball/punching bag hybrid is a must-have for any fighter in training. 2.Although small match the accessories and install them without taking up space. It will swing gracefully or erratically based on the way you hit it or how your trainer moves it on you. 3.It is most certainly a necessary training tool to have in your arsenal to perfect your timing and slipping. 4. Swing and move to give you the ability to time out your hits and dodge oncoming hits like you were fighting an opponent. Colour optional: Balck/Red Size: Before inflation: 30x10cm/After inflation: 30x18cm Package: 1x Boxing Sanda Pear Ball Set Due to different measurement methods, please allow a measurement error of 2-3cm. Due to the problem of shooting tools and light, please allow the color difference between the picture and the product.