The superior leather and silicone rubber of this gag will really give your sub something to sing about. Or, if they could form words, they would be. The spongy ball gently fills their mouth for limited movement, while the leather panel keeps it in place. The silicone ball is suitable for those with novice to intermediate ball gaging experience and will keep your test subject's mouth open without stretching too much or causing discomfort. Meanwhile, the padded panel keeps the ball from sitting too far in the mouth, no matter how tight you fasten the straps.