Keep Clean: Keep your denture or retainer from exposing itself to dust, mildew and germs. the case inhibits growth of bacteria during storage. Durable Material: The retainer cases are made of PP, food-grade safety material and the durable plastic is not easy to break, non-toxic and tasteless.Can be used for a long time. Easy to Carry: 3.14*2.75*0.98 inch. Mini size , This denture storage box is lightweight and portable, you can store it in a small corner of the bathroom, or carry it in a bag, suitable for travel. Vent Holes Design: Breathable and dry dental storage box with 8 ventilation holes on the top, they keep the case well ventilated and your oral appliance dry, The operation is convenient and hygienic. Widely Used: The denture box is an ideal choice for storing the removal tools of the invisible dental braces, retainers, invisible chewers and aligners, and other small items.These retainer cases with holes can be applied to various occasions, such as home, school, office, hospital, dental clinic, travel, honeymoons and other occasions, versatile and practical.