Another one of those weird little finds. You gotta know what you're looking at to be able to tell its a good deal. I am sure I pass many things at the thrift store that others are amazed to find, but baby stuff is my forte. This is a little clip on high chair. It folds completely flat, which is great for traveling and storage and is adjustable to fit most chairs. We've had a rather ugly plastic booster seat for our littlest guy (another thrift store find, of course) so this is an improvement. Cost was $3.99. Its called the Wonderworld Handysitt and retails for $130. I am hopeful I can resell it for a profit when we're done using it as well.