About this item 100% FITS TOTO ELONGATED TOILET .The length of product can be adjusted from 17.72” to 18.9”, this OBLONG toilet seat is compatible with TOTO SOFT CLOSE TECHNOLOGY.Enjoy the whisper-quiet convenience of our toilet seat with advanced slow close technology. QUICK & EASY INSTALLATION OR RELEASE.One-touch installation and removal function,get set up in minutes with included hardware and straightforward instructions EFORTLESS CLEANING WITH QUICK RELEASE MECHANISM. Simplify your cleaning routine with the quick-release design. Easily detach the toilet seat to clean hard-to-reach areas, ensuring a more hygienic bathroom environment NOTE:This toilet seat is not suitable for toilets with bidets.