Procare 5” Raised Locking Toilet Seat with Arms is the best toilet seat riser for extra comfort offering a 5” elevation. It is ideal for you if recovering from a hip or knee surgery or have back problems or having difficulties sitting or getting up from the toilet seat. This elevated toilet seat has a locking system on the front to secure the toilet high riser fitting. The high quality blow molded plastic material can hold the weights up to 350 lbs. Armrest are provided if need any assistance with seating although they are also removable for smooth transfers.