This flexible, silky soft silicone ball gag is very pliable and made of high quality silicone. The mouth gag is adjustable, with a circumference length of 37 cm up to 54 cm. The ball of the mouth gag has a diameter of 45 mm, so it always fits well in any mouth, it has 3 breathing holes that can also be used to push liquids in or out. Don't forget to clean this toy after each use with a high quality toy cleaner.