Durable material: the retainer case is made of PP, strong and durable plastic will not crack or break, long lasting use Bright colors: comes with 6 pieces retainer cases in nice colors, beige, watermelon red, green, tea green, light blue, white; Dimension: 8.5 x 8 x 3 cm/ 3.35 x 3.15 x 1.18 inch Keep retainer or denture clean: holes on the case keeps it well ventilated and your oral appliance dry, inhibiting growth of bacteria during storage Safe design: the mouth guard case has a tight locking closure, leaving your case not open unexpectedly Wide use: these little cases are great for retainers, ear plugs, ear buds, etc. 6 Pieces retainer case mouth guard case orthodontic denture storage container Keep retainer or denture clean: Holes on the case keeps it well ventilated and your oral appliance dry, inhibiting growth of bacteria during storage. Safe design: The mouth guard case has a tight locking closure, leaving your case not open unexpectedly. Wide use: These little cases are great for retainers, ear plugs, ear buds, etc. Specifications: Material: PP Size: 8.5 x 8 x 3 cm/ 3.35 x 3.15 x 1.18 inch Package includes: 6 x Denture case 6 Pieces retainer case mouth guard case orthodontic denture storage container Keep retainer or denture clean: Holes on the case keeps it well ventilated and your oral appliance dry, inhibiting growth of bacteria during storage. Safe design: The mouth guard case has a tight locking closure, leaving your case not open unexpectedly. Wide use: These little cases are great for retainers, ear plugs, ear buds, etc. Specifications: Material: PP Size: 8.5 x 8 x 3 cm/ 3.35 x 3.15 x 1.18 inch Package includes: 6 x Denture case