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 neutralize peroxides, making it different from ordinary contact lens cases. Travel size contact lens cleaner case: The case is lightweight and portable, ideal for travel or outdoor use. Suitable for multiple brands of contact lenses. The bottom tray requires two activations with hydrogen peroxide for proper foaming. Foam 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 case to clean the lens. Keeping your contact lenses clean and safe is important. This product is a contact lens accessory and makes a great gift. Color: White & Blue. Material: Plastic. Package Contents: 4 x Hydrogen Peroxide Case. Note: Only the items listed are included. Other products are not included. Light reflection and different displays may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm.