Squatty Potty offers two Squatty Potty 7" Original Bathroom Toilet Stools in White for $29 with free shipping. (Add two stools to cart to see this price.) That's $14.50 each, a current best for this quantity by $21, and one of the best deals we've seen for this stool. (For further comparison, we saw a single stool for $18 in February.) It's made from polyurethane plastic.