Like being grabbed by a gorilla! High-power calf care: Gorilla's One-Handed Grip. The painful yet pleasant sensation on your calves will become addictive! The powerful pump and air bags of the Gorilla High-Power Series presents the "Gorilla's One-Handed Grip." Perfect for your first calf care experience, it's a simple and easy-to-use type. Even though it's small, the powerful pump that rapidly inflates the air bags is the secret to the "painfully pleasant" sensation of the Gorilla High-Power Series. This size still allows for full-fledged care. Easy to put on, just wrap it around your leg with the Velcro fastener. Anyone can use it comfortably. To start, just press the power button once, and then you can leave it to do its work. You can adjust the strength with the + and - buttons. It's lightweight for one leg, so you can fold it up small when not in use and store it compactly. It's also perfect as a gift. The ease of use, allowing you to use it whenever you want, is also a key point. Please enjoy it during your relaxation time. Timer: 10 minutes automatic OFF Power cord: Approximately 2m Compatible size: Calf circumference approximately 28-52cm Power source: Power cord type Material: Polyester