The Oregon 91384 is a high-quality, high-lift replacement mower blade designed for various John Deere 100 Series lawn tractors. Measuring 542.9 mm (21-3/8 inches) in length, 63.5 mm (2-1/2 inches) in width, and 3.81 mm (0.150 inches) in thickness, this durable blade features a 7-point star center hole for precise fitment. It serves as a direct replacement for John Deere OEM part numbers GX20250 and GY20567, ensuring optimal cutting performance and longevity for your lawn and garden equipment.