SummaryMade in the USAObvious effectSafe materialNon-slippingSizeDentsply - Chewies for Aligner Trays (2 Chewies per Bag) DescriptionTwo aligner tray seater per bagIndividual tamper-proof bags, hygienic and easy to useHelps with the seating of clear aligner trays and Invisalign alignersSize: 1.375" long x .4375" wideMade in the USA Two aligner tray seater per bagIndividual tamper-proof bags, hygienic and easy to useHelps with the seating of clear aligner trays and Invisalign alignersSize: 1.375" long x .4375" wide Made in the USAObvious effect: the aligner chompers with the comfortable design of scientific characters exercise the masseter muscle, effective prevention of deformities caused by braces, makes teeth more fit Safe material: the aligner chewies are made of quality silicone, they are more durable and without BPA, safe for you to use Non-slipping: you can chew the aligner chewies in any part of your mouth easily and no need to worry if they will pop out Size: the dimension of the chewies is about 1.3 inch in length and 0.39 inch in diameter, the proper size makes the chewies fit your mouth and bites effortlessly