Blade for MULCHING lawnmower mower with 53 cm GRIN ORIGINAL MODELS: HM53A - HM 53 A PM53 - PM 53 A SPM53PRO - SPM 53 PRO SPM53A - SPM 53 A Length: 530 mm Central hole diameter: 22 mm Side hole diameter: 5 mm Code: PRT-0130 SM