My first daughter didn't like it, so I used something different, but my younger son started going to the toilet by himself with this one. There are no instructions, but I was able to assemble it by looking at the picture on the box. Pink screws needed for assembly are also included. The frequency of use was short, so I think it's relatively clean, but it's a hand-me-down from a friend and I think it's almost 10 years old. It's simple to make and lightweight. Due to the nature of the product, please purchase only if you understand that it is a used item. Shipping costs 1200 yen, so I cannot lower the price any further.