Package: Come with 5pcs denture retainer cases in bule, yellow, green, white, pink. Dimension: 8.5 x 8 x 4.5 cm. Durable Material: Made of PP, strong and durable plastic will not crack, break easily, odorless, safe. Safe Design: Has a tight locking closure that can prevent your denture from opening unexpectedly. Ventilation Holes Design: With 8 breathable ventilation holes at the bottom of the storage box, you can keep your mouthguard, retainer or denture clean, dry and prevent the growth of bacteria during storage. Widely Used: Lightweight and small, portable, for traveling or storing in bags. The small case is large enough for most retainers, clear holder, denture, earplugs, earmolds, etc. Note: The data are all measured manually, please allow 1-3cm error Due to differences in light and display, there may be some color differences, please refer to the actual item received.