Pour the liquid down their throat. forcing them to swallow every drop. This innovative gag adjusts around your submissive's head. tightening and even locking so that they cannot escape. The flexible funnel is held upright by a strap that snaps in place. but can be removed for more control. Head strap adjusts from 16.5 to 22 in. Gag portion is 1.85 in. insertable. 1 in. diameter.