Gorilla Series Gently massages calves and promotes blood circulation with compression. Perfect for first-time calf care, this is an easy and convenient type. Even though it's small, a powerful pump rapidly inflates the air bags, which 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, and you're good to go. You can adjust the strength with the + and - buttons. Gorilla One-Hand Pink Timer: 10 minutes auto-off Power cord: Approximately 2m Compatible size: Calf circumference approximately 28-52cm Power source: Corded Material: Polyester