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 cleaner case: The case is compact and portable, ideal for travel or outdoor use. Contact lens case: Suitable for multiple types of contact lenses. The bottom tray requires initial activation with hydrogen peroxide; foaming occurs normally after the second addition of hydrogen peroxide. 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 chamber to clean the lens. Contact lens case: Keeping your contact lenses clean and safe is important. 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 Contact Lens Cases Note: Light reflection and differences in display screens may cause slight variations in color between the image and the actual item. Measurement error allowance is +/- 1-3 cm.