This slim, modern retainer holder case keeps your Invisalign aligners and retainers secure when at home and while on the road. A magnetic closure ensures the retainer case stays securely fastened, while a textured liner helps to minimize movement. Specialized spacing behind the hinge of this Invisalign case provides ventilation, allowing your aligner to breathe. This slim retainer case measures 3 3/4 inches in diameter and 3/4-inch high and arrives in a black drawstring pouch that can be used as an additional storage component if desired.