Locking Elevated Toilet Seat Without Arms, 300 lb Weight Capacity. Designed for individuals who have difficulty sitting down or standing up from the toilet. Features include: Heavy-Duty molded plastic construction, provides additional strength and durability. Improved locking device is engineered with larger, heavy-duty "worm screw" and locking plate to ensure a safe, secure fit. Lightweight and portable. Fits most toilets. No tools required for installation.