Your toilet must meet the following conditions or the armrests may not work properly
1.Distance between toillet holes and tank is more than 1.8
2.Distance between holes is 4.8-7.1
3.Toilet holes Dia. is not less than 0.55 (If there are already expansion tubes in it, ignore this)
If you have any problems or concerns, do not hesitate to message us and we will always try our best to help.