4 VENT HOLES WITH SLIDING SWITCH - In order to coordinate the balance of ventilation and protection, we have specially designed 4 vent holes that can be freely opened and closed. You can close these vent holes to avoid dust contamination of your retainers or open them to fully ventilate your retainers. USER-FRIENDLY DESIGN - Built-in mirror helps you easily put on and take off the retainer and check if food is stuck in your teeth. The food-grade silicone pad on the inside prevents the retainer from moving, protecting your holder and reducing rattling noise in pockets and purses. Package included: 1× cute white retainer case, 1× retainer remover tool, 1× retainer chewie, 1× retainer brush. PREMIUM MATERIAL - This nightguard case is made of food-grade ABS. Not only aligner, but you can also use this mouthguard case to store your wire retainer, partial denture, mouth guard, night guard and even your other small items. ENOUGH INTERIOR SPACE - We went through a lot of research before designing this aligner case to ensure it fits all aligner brands such as Invisalign. It can even accommodate retainer accessories such as an Invisalign remover tool, aligner chewies and Dental floss while storing your retainers. PORTABLE RETAINER CASE WITH MAGNETIC CLOSE - This travel retainer case is 3.15 in diameter × 1.1 in height, slim and lightweight. You can put this retainer holder in your purse, bag, lunch box and pocket. The magnetic closure keeps the case securely closed to ensure the safety of your aligner.