Aqualoq Masterseal Universal Wax Free Airtight Toilet Seal 3 Inch and 4 Inch Secure Watertight Protection, Innovative Design Patented, No Wax Mess, Leak Proof, Reusable, Easy to Install Quick & Clean Patented  Masterseal Innovative Design Guarantee No Water Leakage or Damage Watertight and Airtight Protection - Extended No Leak Membrane Provides 100% Seal Protection, Prevents Health Hazards Like Mold and Mildews Breakdown Protection  Made of Thermoplastic Rubber for Lifetime Durability and Will Not Corrode Easy to Install  No Wax, No Mess, Simple, Clean, Quicker Than Installing Wax or Sponge Seal Reusable - Remove Toilet Multiple Times Without Replacing the Seal