hand grip for gym is suitable in gym and home use as well as for men and women, it is easy to use and easy to handle is well. Exercise anywhere, anytime you want; you can use in your home, office, car, fitness club, and even in a library. Completely silent operation allows you to strengthen your hand grip and exercise your forearms and wrist without detection., Best for mixing protein drinks at gyms or for energy drinks for outdoor sports or just simply use it for drinking water at your office/home., 100% Leak proof as it comes with screw tight lid.