WORKPRO Hog Ring Pliers with 500 Pcs 3/4" Hog Rings, Galvanized Steel Hog Rings Perfect for Furniture Upholstery, Auto Upholstery, Plastic Meat & Sausage Casings

Just replace the bottom cover. You'll need these along with the cover itself. WORKPRO Hog Ring Pliers with 500... https://www.amazon.com/dp/B08R9RK8D1

Here's the hog rings and pliers you can use during the replacement. You'll want the heavier duty cutters to remove the old ones. Used when attaching to foam pad. https://www.amazon.com/dp/B08R9RK8D1