To refill Chubby Gorilla bottles and containers, simply open the child-resistant cap by pressing down and turning it counterclockwise. Fill the container with your desired product, ensuring not to overfill. Securely close the cap by turning it clockwise until it clicks into place. The tamper-evident band will automatically engage, providing an additional layer of security. These containers are designed for easy handling and precise dispensing, making them suitable for a variety of applications.