The STIGA 1134030406 is a genuine OEM mulching blade designed for 121cm cutting decks on STIGA Park 121 C and Park 121 C Pro series ride-on mowers. This high-quality blade measures 620mm in length, 50mm in width, and has a thickness of 4mm. It features a central hole diameter of 18.2mm, two outer holes with an 8.5mm diameter, and an outer hole spacing (center to center) of 65mm. Weighing approximately 0.8 kg, this blade ensures efficient mulching performance and durability for your STIGA lawn tractor.