|One baseball. Baseballs come in leather as well as synthetic leather. Both look very nice, so it is more of a personal preference which one you choose. You can find baseballs in the sporting goods section of Walmart or a Sporting Goods store like Dick's. Amazon also sells baseballs as well. I purchased the keychain ring and the eyelet at my local Joann Fabrics (the key ring was in the jewelry making section while the grommet / eyelet was in the Notions section). I found the INSPIRE metal piece at my local Michaels Craft Store in the jewelry making section. For glueing on the metal piece, I recommend the E6000 glue on Amazon. And you can find red embroidery floss at most craft stores.