R-353SEAT Replacement Soft Closing Toilet Seat for TB353, White. This seat is compatible with: TB353 Includes soft closing toilet seat & lid only The soft drop seat has an innovative hinge system that will gently guide the toilet seat down without a sound, eliminating the loud noise of a slamming toilet seat Modern elongated shape and lightweight plastic materiel Toilet part only. PLEASE MESSAGE US IF YOU HAVE ANY OTHER QUESTIONS, AND MANY THANKS FOR READING ALL OF THIS.