Place the gag into their mouth, and let them know that they are going to be quiet for a while. If they have even the slightest bit of disbelief, start squeezing the pump. The gag will inflate inside of their mouth and truly make sure that they are unable to speak. Turn a silent slave into an obedient one. Measurements: 16 inches in total length. Gag measures 5 inches across and 1.25 inches deep uninflated, 3 inches deep inflated. Material: Silicone, plastic. Color: Black. Note: Take great care not to over inflate and cut off air flow. These products as with all products on this site are supplied AS IS. No warranty is given either implied or expressed. Products are intended as novelty only, and no representation is made or implied as to their suitability or safety for any particular use. Purchasers use the products entirely at their own risk. The manufacturer or re-seller is not liable for any direct, indirect, incidental or consequential damage or loss howsoever arising caused by use or misuse of the products. This includes, but is not limited to, damage to the products and personal injury or damages due to use or misuse.