Contact lens cleaner case: This contact lens case is made of eco-friendly plastic material, which is strong and safe. It features a unique neutralizing disc on the bottom to help neutralize peroxides, distinguishing it from standard contact lens cases. Travel size contact lens cleaner case: The case is lightweight and portable, ideal for travel or outdoor use. Compatible with multiple brands of contact lenses. The bottom tray requires initial activation; foaming occurs normally after the second addition of hydrogen peroxide solution. Usage: Unscrew the top cap, open the clip, place the lens in the designated basket, close the clip, and pour in the cleaning solution to begin the cleaning process. Clear care contact case: Maintaining clean and safe contact lenses is essential. This product serves as a useful accessory for contact lens care. 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 shown in the image and the actual item. Measurement may vary by +/- 1-3 cm.