This is a discontinued boy's toddler toilet from Three Coins. The current model seems to have three height adjustments, but this one looks like it can be adjusted with suction cups and push pins, so I think it'll be useful for fine-tuning the height. Also, unlike the current model, it has a cute frog shape that I think will make going to the toilet fun for your child ☺︎ I didn't use it that often because we mostly used a regular toilet! Home cleaned.