Come and see our amazing products. Retainer Case is made with strong quality durable PP material that will not crack or break easily.It has built-in ventilation system consists of two rows of ventilation holes on both flaps that keep your oral appliance dry. the retainer case can store orthodontic rubber bands or orthodontic waxes during treatment. Additionally, the retainer case can store ear buds to enjoy your music while waiting for your orthodontic appointment. Pls confirm with us about the packing info, stock color and exact production time before placing your order.