# Potty Seats Usable Across Multiple Training Stages Which potty seats can be used for more than one stage of potty training? Summer Infant My Fun Potty: Multi\-stage potty training system; a detachable seat can be used on the stand\-alone potty and on adult toilets Summer Infant Step by Step Potty: Complete 3\-stage potty\-training system\. The First Years 2\-in\-1 Proper Position Potty: The ring detaches and transfers to the family toilet for a second stage of use Prince Lionheart 3\-in\-1 Potty: A full\-size potty that transitions into a step stool and toilet topper as your child gets older\. ### 1. [Summer Infant My Fun Potty](/products/ucp/megababiesusa-com/8307855458558) (sold by megababiesusa\.com) Multi\-stage potty training system; a detachable seat can be used on the stand\-alone potty and on adult toilets - Multi\-stage use: Multi\-stage potty training system; a detachable seat can be used on the stand\-alone potty and on adult toilets (listing) - Second\-stage use: Multi\-stage potty training system; a detachable seat can be used on the stand\-alone potty and on adult toilets (listing) - Step stool: The lid closes to convert the potty into a stepstool to reach the bathroom sink (listing) ### 2. [Summer Infant Step by Step Potty](/products/ucp/megababiesusa-com/8307863093502) (sold by megababiesusa\.com) Complete 3\-stage potty\-training system\. - Multi\-stage use: Complete 3\-stage potty\-training system\. (listing) - Second\-stage use: The toilet topper snaps off and can be placed securely onto a standard toilet\. (listing) - Step stool: Converts into a step stool for reaching the bathroom sink\. (listing) ### 3. [The First Years 2\-in\-1 Proper Position Potty](/products/ucp/megababiesusa-com/842923376701) (sold by megababiesusa\.com) The ring detaches and transfers to the family toilet for a second stage of use - Multi\-stage use: It is a 2\-in\-1 potty that becomes a toilet trainer seat (listing) - Second\-stage use: The ring detaches and transfers to the family toilet for a second stage of use (listing) - Step stool: - ### 4. [Prince Lionheart 3\-in\-1 Potty](/products/ucp/megababiesusa-com/8468968734974) (sold by megababiesusa\.com) A full\-size potty that transitions into a step stool and toilet topper as your child gets older\. - Multi\-stage use: A full\-size potty that transitions into a step stool and toilet topper as your child gets older\. (listing) - Second\-stage use: - - Step stool: - Every value in the table is a fact RoboTrunk checked, linked to the page it came from\. A dash means no checked fact fills that cell\. Prices and stock change, so this page prints neither: each product name links to its RoboTrunk page, which shows them live\. Written 2026-10-11T01:23:57.890Z. This page is published by RoboTrunk, a store built for shopping agents. The store named on this page sells the product and ships it. RoboTrunk is not the seller and never holds the money. Buying works in one path. RoboTrunk's tools prepare a checkout at that store, then hand back a short-lived link. The person approves the total; once RoboTrunk has checked the store's total against it, the person is given the checkout link to tap in their own browser, or, if the person prefers and gives permission, their agent may open the link and finish there, and payment always happens on the store's own checkout page. RoboTrunk never takes the payment or sees a card. Where the rest of this site is: - /agent/story.md is what RoboTrunk is and how it works, in full. - /agent/tools.json is every tool, its arguments and its answers. - /agent/merchants is every store you can buy from through RoboTrunk. - /products/ucp is every store's indexed products. - /products/search is one search across every store, in plain words. - [What RoboTrunk is](/agent/story.md) - [The tools and how to call them](/agent/tools.json) - [The stores you can buy from](/agent/merchants) - [Every store's products](/products/ucp) - [Search every store at once](/products/search)