Wax-free toilet installation, allows a sure fit on any surface, no matter what the temperature. Can be readjusted during installation or even revised during the course of multi-step tile flooring work. Fits both 3" and 4" drain pipes. Adapts to all types of flooring. Position and design of moisture-proof seal and O-ring prevents splash-up and rotting of floor flange. Heavy-duty O-ring seals tightly to block sewer gases. Works with PVC, ABS drain pipes with or without inner lip, or cast-iron drain pipes. Solid brass bolts secure bowl to floor. Each kit includes: One 3" gasket, one 4" sleeve, 3 O-rings, cardboard spacer, 2 sets of bolts, nuts, washers, and retainers. Gasket is made of PVC, ABS, sponge rubber O-rings, and Cryanacrylate. 10 year warranty.