XIANQI Portable Retainer Case 5pcs Mouth Guard Case Dental Orthodontic Retainer Box Denture Storage Container Durable Material: Made of pp material, strong and durable plastic will not crack or break easily,no smell, ; Safe Design: Has a tight locking closure, can prevent your denture case open unexpectedly. Vent Holes Design: with 8 breathable ventilation holes on the bottom of detal storage box, can keep your mouthguard, retainer or denture clean, dry and inhibits growth of bacteria during storage. Widely use: Light weight and small, portable for travel or store in bags. The small case is big enough for most retainers, transparent holder,denture ,ear plugs,ear buds, etc. Color: yellow, white, green, pink, blue Size: 8*8*4.5cm Quantity delivered: 5 pieces