This soft and fully adjustable silicone gag with O-ring is perfectly designed for comfortable yet secure restraint. With this beautifully crafted toy, you can stretch and open your sub's lips for a variety of play options. The O-ring made of medical-grade, phthalate-free silicone is rigid but gentle on the teeth. The leather strap is fully adjustable and features a sturdy metal clasp for secure tightening. This O-ring strap has an overall length of 57 cm. The inner diameter of the flexible silicone ring is 4 cm.