High Quality, Healthcare grade, Class VI Standard Silicone Rubber Scuba Mouthpiece at a factory direct price.Our Standard Mouthpiece has generous bite plate with supple side walls making it extra comfortable for divers with normal or smaller mouths. The mouthpiece breathing hole is compatible with most regulators (1.1 x 0.5 inches). Standard Mouthpieces are currently available in five colors: Clear, Black, Blue, Yellow and Pink. Mouthpieces sold Bulk: 25 to a bag, one color per bag. All of our products are injection molded at our ISO Certified factory in Sanford Maine, USA.