Listing is for Four (4) each right and left hand Bush Hog RTL or RTS Tiller Tines, codes 64463,64462,64452,64454.  The 66462 and 66463 are tines with a sharp "L" bend and the 64452 and 66454 tines have a softer "C" tine. Mounted these tines are interchangeable with either the "L" or "C" version so it doesn't matter what was originally on your machine. If you need more tines just increase the quantity to purchase at checkout. 
Specifications
Heat Treated Boron Steel
Two 12.5mm (0.492") holes that are 106mm (4-3/16") on center
L: 248mm (9.763")
H: 90mm (3.543")
Use diagram in pictures to match up "L" and "H" dimensions
Plate: 40 mm X 8 mm / 1.574" X .0314" before forging
Wt. 1.43 lbs