Contact lens case: Made from eco-friendly plastic material, this durable and safe contact lens case features a unique neutralizing disc at the bottom designed to neutralize hydrogen peroxide, distinguishing it from standard contact lens cases. Travel size: Lightweight and portable, this contact lens case is convenient for travel and outdoor use. Compatibility: Suitable for use with multiple brands of contact lenses. The bottom tray requires an initial activation period and will begin foaming normally after the second addition of hydrogen peroxide solution. Usage instructions: Unscrew the top cap, open the secure clip, place the lens in the designated compartment, close the clip, and pour in the hydrogen peroxide solution to begin the cleaning process. Care and maintenance: Keeping your contact lenses clean and properly disinfected is essential for eye health. This case is a practical accessory for contact lens wearers and makes a thoughtful gift. Color: White & Blue. Material: Plastic. Package contents: 4 x Hydrogen Peroxide Contact Lens Cases. Note: Other items not included. Due to lighting and display differences, the actual color may vary slightly from the image. Measurement may vary by +/- 1-3 cm.