Usage Tips:Contact lens cleaner case: this contact lens case is made of eco-friendly plastic material, which is very strong and safe, and has a neutralizing plastic disc on the bottom for neutralizing peroxides, which makes it different from ordinary contact lens cases Travel Size Contact lens cleaner machine: the contact lens case is and portable, making it easy to take with you when traveling or outdoor activities Contact lens case: suitable for multi- contact lenses, the bottom tray does not foam after the first addition of hydrogen peroxide, requiring a second activation, and foams normally after the second addition of hydrogen peroxide Usage: unscrew the top cap, open the hard clip, place the lens in the designated basket, close the clip, and then pour the cleaning solution into the bottle to clean the lens contact case: it is important to keep your contact lenses clean and safe, and this product is an accessory for your contact lenses, suitable as a gift. Color: White & Blue Material: plastic Package Contents: 4 x Hydrogen Peroxide Case Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.