Features: 1. Design Principle: The user can see the dropper of the eyedrop bottle and their eyeball using the mirror reflection, allowing for easier and more confident application. 2. Applicable: Includes two types of elastic bayonets for large and small openings, replaceable by the user, suitable for eye drops with different diameters. 3. Safe Material: Made of ABS + PC + Lens, safe for use, easy to clean, and durable for long-term use. 4. Protect Your Eyes: Designed to fit comfortably over the eye. Safely keeps the bottle tip away from the eye to help reduce the risk of injury and infection. 5. How To Use: Step 1: Select the appropriate elastic bayonet and insert it into the frame. Step 2: Unfold the mirror and insert the eye drop bottle nozzle into the bayonet. Step 3: Lie down, gently pull down the lower eyelid, position the eye dropper near the eye, and look into the mirror. Step 4: Adjust the dropper slightly so that the tip seen in the mirror is aligned with the eyeball, then squeeze the bottle to accurately administer the drop. Step 5: After use, remove the bottle by turning it counterclockwise. Specification: Material: ABS + PC + Lens Color: Blue, White Product Size: 6.5 x 6.5 cm Product Weight: 26g Package Included: 1 x Eyedrop Guide Aid