The Perfect Fit Large Tunnel Plug. You've never seen anything like this; it's the coolest innovation in butt plugs since they came on the market. Instead of just plugging someone's butt, you can open it and use the incredible tunnel hole that goes all the way through the plug. Besides the unbelievable sensation, you are actually able to see right into it. Use your imagination and go wild, or easily insert fingers or lube right through the plug. This is the most innovative play toy that had become available in years. It is made of special blend of silicone and TPR called PF Blend. It is available in ice clear. The large version has an insertable length of 3.25 inches and a circumference of 8 inches. It is safe with all lubes. This product is not compatible with latex products.