Contact lens cleaner case: This contact lens case is made of eco-friendly plastic material, which is strong and safe. It features a neutralizing disc at the bottom to neutralize peroxides, making it different from standard contact lens cases. Travel size contact lens case: The case is compact and portable, ideal for travel or outdoor use. Compatible with multiple contact lenses. The bottom tray requires initial activation; it does not foam after the first addition of hydrogen peroxide but will foam normally after the second addition. Usage: Unscrew the top cap, open the clip, place the lens in the designated basket, close the clip, and pour the cleaning solution into the case to clean the lenses. Maintaining clean and safe contact lenses is essential. This product serves as a useful accessory for contact lens care and makes a thoughtful gift. Color: White & Blue Material: Plastic Package Contents: 4 x Hydrogen Peroxide Case Note: Light reflection and different displays may cause slight variations in color compared to the actual item. Measurement may vary by +/- 1-3 cm.