Honda Genuine 72511-763-C00 & 72531-763-C00 Mower Blade Set - 72511-763-C00A.

Set Icludes:
(1) Honda Blade R. Rotary - 72511-763-C00.
(1) Honda Blade L. Rotary - 72531-763-C00.

Fits the following:
CD3811 A - RAH 0000001-9999999 - ROTARY BLADE (CD3811)
CD3813 A - RAG 0000001-9999999 - ROTARY BLADE (CD3813)
H3013H HSA - MZAH 6000001-9999999 - ROTARY BLADE
HT-R3811 SA - MABT 5000001-9999999 - ROTARY BLADE
HT3810K2 SA - HT3810 5200001-5299999 - ROTARY BLADE (HT3810K2/3813K1)
HT3813K1 SA - HT3813 5100001-5199999 - ROTARY BLADE (HT3810K2/3813K1).
This is a OEM Honda Part.
Thanks for looking!