Inflatable IKEA Highchair Cushion From Yeahbabygoods
Used for a short time. I think there may be a crack or a hole in one side as it slowly deflates over time. It took probably a week+ for it to deflate. But honestly it wasn’t a big deal because our girl only needed the cushion for a couple months until she was big enough, and then we deflated both sides and just used it as a back cushion!