Professional range - Blade for HONDA models HRX 537C (HRX537C) - HRX 537C1 (HRX537C1), HRX 537C2 (HRX537C2), IZY 53 - L: 532mm, central bore: 32mm, pitch center: 88mm. Replaces original: 72531-VE2-000, 72531-VE2-001, 72531-VE2-010, 72531-VE2-020, 72531VE2020, 08720-VE2-000, 08720-VH7-000, 72531-VE2-000, 72531-VE2-010, 72531-VE2-020, 72531-VH7-000 fits Harmony, Harmony II, HRB215, HRM215, HRS216 and HRT216 with 21 deck.