Function: Aligner tray seaters are used every time when wearing Clear Aligner Trays to make the trays fit the teeth better, and can speed up invisalign treatment Easy to use:You can chew the silicone aligner chewies in any part of your mouth easily and no need to worry if they will pop out, and they are in proper sizes which will fit your mouth well and make you bite effortlessly. The aligner chewies are made of quality silicon, they are more durable and without BPA, safe for you to use. The chewies for aligner trays are made of quality silicone material, BPA-free, durable and safe to use, providing you with a soft chewing. Specifications: Material:Silicone Size: about 1.3 inch length and 0.39 inch diameter Package Includes:10 x Aligner chewies 【WARMLY REMINDER】 1.Manual measurement, please allow slight errors in size. 2.The color may exist slight differences due to different screen displays. 3.Choking risk may exist, please keep away from children.