i used one for DS. I dont htink you can get them now, its like a wire frame and has a terry cloth rectangle piece of fabric that slides over it. you cant leave the baby unattended on here though, its like any other bath seat. I found it really helpful as I has trouble bathing DS in the early days.

You can buy these wire frame ones in Target i've seen them

We have bought the plastic infant bath seat for bub lasts up until age 5-6mths i think!