NO MESS: Perfect Seal has a hidden wax ring which causes no mess and 3Xs stronger seal than regular wax ringsREPOSITIONING CAPABILITY: Both the Perfect Seal and Zero Cut Bolts allow for multiple toilet repositions as needed during installationNO CUTTING REQUIRED: brass and stainless steel bolts are adjustable up to 3 inches and can be easily turned by hand for perfect height. The SLIDING ADAPTERS tighten the bolts and the low-profile caps featuer an easy lock and release mechanismWORKS WITH FLANGES that are 1/2 inch ABOVE the floor or 1-1/2 in