This velvety-smooth and fully adjustable silicone O-ring gag is expertly crafted for comfortable yet secure restriction. Stretch and part your submissive's lips for various play options with this elegantly designed toy! Made from medical-grade, phthalate-free silicone, the O-ring is rigid yet gentle on the teeth. The leather strap is completely adjustable and features a sturdy metal clasp for secure tightening. This O-ring strap has a total length of 57 cm (22.5"). The inner diameter of the flexible silicone ring measures 4 cm (1.6").