The Drive Medical toilet seat riser with handles is designed to aid people in getting up and sitting down. This locking device comes with a larger, heavy-duty "worm screw" and locking plate for a safe, secure fit. Our elevated toilet seat adds an extra 5 inch of height to the toilet and includes padded armrests that can be easily adjusted or removed. It fits on most standard toilets and installs without tools. Backed by a limited lifetime warranty from Drive Medical, a leading brand of bathroom safety products, mobility aids, and other medical goods for more than 20 years, you can purchase with confidence.