Hope no one minds but I've gotten some PMs asking about what seat we use for PT and thought it would be easier to just do a general post. For the first few weeks we used just the basic Safety First plain potty seat. After that they use the Xpress Trainer Pro-All Family Toilet Seat (we've had it for at least 4 years now and its still just as awesome! My very petite 4 year old DD still uses it). There's a ton of different ones like it but the reason I liked this brand is because my kids were all on the "younger" side of PT I liked that the entire hole was smaller and not just narrower like some other brands so it made them feel more secure. I got ours off Amazon:
https://www.amazon.com/Xpress-Trainer-One-Real-Training-Elongated/dp/B0012ADSN8/ref=sr_1_2?ie=UTF8&qid=1402325941&sr=8-2&keywords=xpress+child+to+adult+toilet+seatHTH!