Toilet Seats Elongated Lt Mahogany Hardwood Toilet Seat Chrome Hinge Seat 17 5/8 x 14 1/2 Lid 16 3/4 x 13 1/8 Superior quality SOLID HARDWOOD ELONGATED TOILET SEAT holds up to daily wear and tear Chrome Bar Hinges. Will fit 5 1/2" to 6" boring. Stabilizing polymer bumpers keep the seat steady No cracking at usual stress points