SmileWorld - Premium Set 4 units instant Mouthguards, and TJM Appliances.The Bundle Set include: Retainer Case- Design with 2 Air holes for ventilation , and Five more Essentials Retainers Accessories . Perfect to clean the Mouth guard, and bring it Wherever you like. ☑️The SmileWorld Mouthguard is softens in Hot water and Moldable to fit perfect for all . Multi porpose- can be used as Teeth whitening Tray, Mouthguard sport protection , and as TJM Appliances for instant relief . ☑️ BPA Free , Made in USA with medical Grade .