Murray Riding Mower Blade Set part# 92543 is made up of two differing blades. One of the blades is marked for mounting on the discharge side of the deck. The length of these blades is 19-1/2" and the center holes have a diameter of 7/8". We were unable to locate a listing of models that use this part. Please consult a parts breakdown or owners manual before ordering to confirm that this is the correct blade for your model. Price listed is per set of two blades.