Product details:

Premium Quality - Our toilet seat is made of high-quality thick polypropylene plastic, which is resistant to stains, chips, scratches, Elongated Toilet Seat Size - This is an ELONGATED toilet seat. Standard Size Length:18.3-18.8 inches, Width:14.2 inches, and the mounting hole distance is 5.15-6.18 inches, it's suitable for most standard elongated toilet bowls.
No Banging Sound - Quiet close lid closes slowly and silently without slamming.
Manual Operation - No batteries, no electricity. Simply twist the control lever to change the water pressure of the bidet seats from soft to strong. Find the most comfortable water pressure and immerse yourself in the moment.
Easy to Install - Quick release hinges allow for easy removal and convienent cleaning; no tools required.