OEM# 107-3192-03 Length: 16-1/2" Width: 2-1/2" Thickness: .250" Center Hole: Diameter 5/8" Genuine Original Toro Lawn Mower Blades, part no. 107-3192-03. SPECIFICATIONS - Length: 16-1/2" (41.9cm), Width: 2-1/2" (6.25cm), Thickness: .250" (6.35mm), Center Hole: Diameter 5/8" (16mm). ***Will fit Toro: 48" Mowers (3 Blades with 5/8" Center Hole) 16-1/2" Blade***