Mucus Clearance Device with 16/18/19MM Stainless Steel Balls, Flutter Valve Clearing Device and Breathing Muscle Exercising Device for Strenthing, GY Design Provided

EXERCISE DEVICE: Send vibrations to your muscle. It's effective to enhance muscle power. EFFECTIVE EXERCISER: Our muscle exerciser enables people to gradually improve their muscles ability during daily exercise, strengthen capacity. SUITS MOST PEOPLE: Provided 16/18/19mm balls with different resistance EASY TO USE: Exercise device only needs to be assembled with steel balls of your size. Nothing needed, no follow-up costs. A small one, you can take it with you and exercise at any time KEEP USE: Please refer to the instruction to get the correct method of use. 1-2 times a day to finish our habit development card to see great results.