4 TOTAL. USED ORIGINAL HEAVY CAST IRON WHEELS WITH LOTS OF PATINA AND COSMETIC WEAR FROM AGE AND USE. SHOWS RUST, PAINT LOSS, STAINS, DUSTY/DIRTY, ETC. EACH IS APPROX: 7 1/2" DIAMETER X 2 1/2" THICK WITH 3/4" DIAMETER SHAFT HOLE OPENING. One of the wheels has a spacer it will have to be punched out for the 3/4" hole PLEAE ASK