Lumex Locking Raised Toilet Seat is built to improve bathroom mobility for people who may have trouble bending after surgery, illness or injury. This attachable lightweight toilet seat is made of latex-free, heavy-duty plastic for comfort and durability. You can attach the raised seat directly to your regular toilet seat, where it locks in place to prevent shifting while reducing the need to bend or squat.
I just purchased a new one for a trip I am going on and will be taking it with me. This is the second I have purchased and I find it to be really helpful as I have trouble getting up from lower positions.