What’s included? Replacement Seat Cushion / Cover - Multi-Color Print. This replacement Seat Cushion / Cover works with the Fisher-Price Deluxe Sit-Me-Up Floor Seat - HGN19 Described Below - Listing is for Seat Cushion / Cover Only. Your baby can play, snack and look at the world around them the Deluxe Sit-Me-Up Floor Seat from Fisher-Price. With soft fabrics and wide, sturdy base, this infant chair gives your baby the extra support they need to sit up and snack with the removable tray. When babys ready to play, you can place the toy bar insert in the tray for bat-at fun. This set is sold separately and is not included with the replacement Seat Cushion / Cover - Description is for Fisher-Price Deluxe Sit-Me-Up Floor Seat identification purposes only. Oh no, where did it go? Isnt it just the worst when you lose the most important part to a baby product? Never fear, weve got you covered! We carry a large variety of replacement parts for your toy or baby product. This is a replacement Seat Cushion / Cover for Fisher-Price Deluxe Sit-Me-Up Floor Seat - Item # HGN19.