THIS KIT INCLUDES THREE BLADES AND THREE SPINDLES. THE BLADES REPLACE 110-6837-03 AND 112-9759-03. BLADE SPECS: LENGTH 17-1/2 WIDTH 2-1/4" C. H. DIA 5/8" THICKNESS 0.1600". BLADES ARE COMPATIBLE WITH MODELS: TORO: TIME CUTTER Z, TIME CUTTER Z, Z5000, 3 FOR 50" 74370, 74372, 74373, 74374, 74375 AND 74376. THE SPINDLES FIT OEM NUMBERS EXMARK: 117-7268, 117-7439 AND COMPATIBLE WITH TORO: 117-7267, 117-7268, 117-7439. COMPATIBLE WITH MODELS: TORO: 4200, 5000, 4216, 4235, 4260 AND 5060 TIMECUTTER. SPECIFICATIONS OD: 6 1/4". HARDWARE IS INCLUDED.Warning:Lead-Nickel-Cancer and Reproductive Harm