The STIGA 1134906301 blade set is an original equipment manufacturer (OEM) part designed for STIGA ride-on mowers with a 100 cm cutting deck. This set includes two mulching blades, engineered to provide superior cutting and mulching efficiency. Each blade measures 500 mm in length, 50 mm in width, and has a thickness of 4 mm. The central hole diameter is 18 mm, with two outer holes of 8.5 mm diameter, spaced 65 mm apart. This blade set is crucial for maintaining the performance and longevity of your STIGA lawn tractor's cutting system.