No Mess Toilet Installation: The Perfect Seal Encapsulates The Wax With Rubber Delivering A Strong Seal Without The Sticky Mess;Toilet Can Be Re-Positioned: Unlike Wax Rings, Perfect Seal Allows The Toilet To Be Re-Positioned As Needed;Maintains A Tight Seal: The Perfect Seal Maintains A Tight Seal Even When Common Toilet And Floor Movements Occur;Stronger Seal Than Traditional Wax Rings: The Patented Seal Design Delivers A 3 Times Stronger Seal Than Traditional Wax Rings;Accommodates Different Floor Heights: The Perfect Seal Can Be Used To Install Your Toilet Whether It Is Above The Floor Or Below The Floor;Perfect Seal Dimensions: Inner Dimension Of Adapter Is 2-5/8 Inch;Inner Dimension Of Center Of Seal Is 2-3/8 Inch.;Helpful Install Tip: If The Toilet Does Not Sit Flush To The Floor Upon Installation, The Black Plastic Ring Inside The Gray Rubber Casing Can Be Removed Allowing The Perfect Seal To Be Fully Compressed Floor;Toilet Bolts Included: Complete Toilet Install Kit Includes (2) Stabilizing Toilet Bolts, Washers And Nuts;Universal Design Works For The Majority Of Toilet Installations;Hassle-Free Installation: With The Perfect Seal, A Toilet Can Be A One Person DIY Install