Contact lens cleaner case: This contact lens case is made of eco-friendly plastic material, which is durable and safe. It features a neutralizing disc at the bottom to effectively neutralize hydrogen peroxide, making it different from standard contact lens cases. Travel size contact lens case: The compact and portable design makes it convenient for travel and outdoor use. Compatible with multiple types of contact lenses. The bottom tray requires initial activation; it does not foam upon first addition of hydrogen peroxide but functions 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 begin the cleaning process. Maintaining clean and safe contact lenses is essential. This product serves as a useful accessory for contact lens care and can be 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 between the color of the item in the image and the actual product. Measurement may vary by +/- 1-3 cm.