TWO PACK: With retainers and mouthguards, nothing is worse than losing your case and having to put it directly in your bookbag, gym bag or a plastic baggie. The retainer case twin pack gives you 2 sturdy cases, one for your bedside or bathroom at home and another for your bag on the go.;TIGHT SECURE CLOSURE: These snap lock retainer cases have a tight locking closure with a secure snap, letting you know your case won't come open unexpectedly.;WELL VENTILATED: Air holes allow your mouthpiece to dry in between uses; case is top dishwasher rack safe.;1 YEAR WARRANTY, MADE IN THE USA: Crafted of BPA free, FDA approved plastic, made in the USA.;CONVENIENT SIZE: Each snap lock case measures 3.1 inches wide x 2.6 inches long x 1.4 inches high