Usage Tips: 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 at the bottom to 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. Contact Lens Case: 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 clean the lens. Clear Care Contact Case: Helps keep your contact lenses clean and safe. This product is a lens care accessory, suitable as a gift. Color: White & Blue Material: Plastic Package Contents: 4 x Hydrogen Peroxide Case Note: Light reflection and different displays may cause slight color variations between the image and the actual item. Measurement error allowance is +/- 1-3 cm.