【Keep Your Aligner Clean and Dry】The retainer case with 12 vents holes and a hanging hole design, allowing braces to be stored in a dry and hygienic environment, drain the retainer and ensure there is no odor..【Food-Grade Material】Made of high quality food-grade silicone, non-toxic and odorless that can be washed with water, making it easy to clean, even supports 211℉ water boiling disinfection. Touch is a soft and skin friendly feel, which is not easily deformed after compression and is durable and wear-resistant..【Enough Internal Space】This travel retainer case measures 3.94 x 3.15 x 1.38 inches. Due to its silicone material, it is elastic and stretchable, making it suitable for all aligner brands such as Invisalign. It can even accommodate retainer accessories such as an Invisalign remover tool, dental floss and aligner chewies while storing your retainers..【Easy to Carry】The retainer case can be placed in your pocket or hand bag. It has a hanging hole design and we also come with two lanyards with lengths of 7.5 inches and 17 inches, which can be hung around the neck or carried by hand to meet different usage requirements. It can help you protect your retainers well during travel, work, and meals..【What You Get】 2 Pack Silicone Retainer Case with Lanyard and friendly customer service, your satisfaction is our top priority, any non-artificial quality problems, please feel free to contact us for free replacement or refund.