Design C shapeA set of 20 dental open mouth pun mouth retractors is an entertainment game company. Easy to use widely in orthodontic treatment. The C-shaped design of Mouth Opener Retractor is ergonomically designed. Maximum anastomosis with the mouth to ensure the success of orthodontic treatment 20 Pieces and 2 Size20 Mouth Opener Retractor. Low price and wonderful combination make it the best choice for family and friends. High QualityThese Mouth Opener Retractors are PC (polycarbonate) and FDA approved for quality and durability superior. The Mouth Retractor has a smooth edge and is comfortable to wear. We ensure that your mouth has a safe, hygienic and quality dental mouth retractor. Fashion set - Originally used for dental purposes. Essential Tools for Dentists- Suitable for dental clinics and teeth whitening salons.