Give your daily routine more style and personality while maintaining flawless oral hygiene. Choose 4 replacement brush heads specifically designed for your AQUAPICK AQ-102 sonic toothbrush in your favourite colour. How to use the AQUAPICK AQ-102 replacement brush heads: Make sure your AQUAPICK sonic toothbrush is turned off. Press firmly on the release button located on the toothbrush handle. Remove the old brush head and attach the AQUAPICK AQ-102 replacement brush head to the handle. Press the replacement brush head firmly until you hear a click, indicating that it is securely locked in place. Manufactured in South Korea.