This Premium Elevated Toilet Seat with Lock by Drive Medical fits most elongated toilets. The lock ensures a tight fit providing additional safety and added feeling of security. A wide opening in the front and back allow for worry-free personal hygiene. The elevated seat and padded arms will help individuals who need a boost sitting down or standing up from the toilet. For consumers using a wheelchair, tool free removable arms allow for easy transfer to and from the raised toilet seat. Designed for individuals who have difficulty sitting down or getting up from the toilet|Adds 5" to height of toilet seat|Tool-free arms are 21" apart and can be removed or added as needed|Wide opening in front and back for personal hygiene|Heavy-duty molded plastic construction provides additional strength and durability|Standard locking mechanism ensures safety|Lightweight and portable|No tools required for installation|Easy to clean|Fits most elongated toilets