The TNS face mask plastic cases will keep your cloth or disposable face mask clean and sanitary when they are not being used. Each TNS face mask case includes a keyring and hand wrist lanyard that lets you attach the storage case to your bag, purse, backpack, or clothing for hands-free carrying. The TNS plastic face mask storage case is reusable and water resistant. We recommend you clean the case daily with a disinfectant wipe. When not using your mask the storage case can store your mask when you have nowhere to put it. When children are not in class, or not required to wear their mask, the storage case is a safe and effective way for them to not lose their mask. The TNS storage case is a must for everyone who is required to wear a mask. Each TNS plastic face mask storage case will hold 1 or 2 masks depending on the size and thickness of each mask.