Innovative combination: You will get a PU bag with a wrist strap + a transparent retainer box + an aligner removal tool + a mirro + a lanyard + a brush. Material: The retainer container case is made of food-grade polypropylene and the aligner removal tool is made of reinforced ABS material. They are sturdy and durable. Intimate design: The aligner removal tool is ergonomically designed and easy to operate. It can avoid touching the mouth with hands and reduce nail damage. Lightweight and portable: The size of the retainer box is 2.9 x 2.9 x 1 inches, and the PU bag is 3.5x3.5x1.9inches,which is small and light, and does not take up too much space. It is convenient for you to carry it with you to work, school or travel. Wide use: The retainer container case is great for storing and protecting sports mouth guards, retainers, whitening trays and other dental appliances.When the dental treatment is over, the PU bag can also be used as a lipstick bag, earphone bag , coin bag or simple cosmetic bag.