About This Ventilation holes—The PUINVI retainer case features ventilation holes to keep the retainer dry. High Quality — The retainer cleaner case is made from ABS material, crafted from premium materials for exceptional durability, ensuring reliable long-term use. Magnetic Closure — Featuring a magnetic closure design, simply press the magnets together to securely fasten the lid, ensuring the retainer holder case stays tightly sealed and preventing accidental opening. The custom-made, powerful magnets on the retainer container case are nickel-plated to prevent rust. Lightweight and Portable—The compact and lightweight pink retainer case measures 3.3“ L x 3.42” W x 1.18" H, making it easy to carry without taking up too much space in your wallet, bag, lunchbox, or pocket. It's perfect for travel or on-the-go use. Personalized Design—Externally crafted with meticulous attention to color coordination that blends fashion-forward trends with practicality. Internally equipped with a water-filtering layer for a convenient retainer case invisalign. The lid features a compact mirror, allowing you to remove your aligners anytime and maintain a confident smile.