Contact lens 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 help 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. The case is suitable for multiple types 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. Keeping your contact lenses clean and well-maintained is important. This product serves as a practical accessory for contact lens care and may be suitable as a 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 may vary by +/- 1-3 cm.