Bolted Toilet Seat Riser with Arms - ElongatedThis toilet riser bolts to the toilet for a secure fit. The raised toilet seat for the elderly adds 3. 5 to seat height to improve ease of getting up. This toilet riser is made of heavy duty plastic with strong steel bolts that fit most toilets. The riser also supports up to 300 lbs, making it an ideal solution for those needing assistance when getting on and off the toilet. This fits elongated toilets where the length of the toilet is about 18". Dive