Place it onto the bottle or container that you want to open switch it on and turnbuckles effortlessly open your container for you simple operation a real problem solver for twisting caps of pet bottles tubes of all kinds such as ointments creams toothpaste and tablet cans freshness seals and safety locks can also be opened much easier with automatic downward pressure applied by the device automatic operation with only one button features works up to max 5 cm diameter caps bat