7, ecco Toilet stool, get optimal elimination, works perfectly for families of any size & is incredibly durable & easy to clean, transform your Toilet into an elimination station.Doctor recommended & FDA REGISTERED Helps you mimic a natural squat to properly align your colon More complete & easier elimination Life-changing health benefits. Great for preventative care. 7″ is the standard height and comfortable for most people Featured on Shark Tank and Howard Stern Made in the USA Made of hard, easy to clean polyurethane