Precision Compatibility: Designed specifically for 21inch dual-blade for + lawn mowers (compatible with models LM2130SP, LM2150SP, and LM2160SP), ensuring a and optimal cutting performance. Complete Replacement Kit: Includes all necessary components - 1 fan, 1 center flange bolt, 1 washer, 2 blade support bolts, and 2 pre-torque hex lock nuts - for a full blade assembly replacement. & Efficient Design: Constructed from metal with a - finish; the specially designed fan improves airflow, reduces debris buildup, and prevents overheating. Easy Installation: Simple tool-free removal of old parts and quick installation using just a wrench, making it ideal for routine maintenance between mowing seasons. Enhanced Performance: Helps restore mower efficiency by securely fastening blades, reducing vibration, and ensuring clean, consistent cuts even under heavy use. Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Color: As Shown Material: Metal Package Contents: 1 x Lawn Mower Blade Replacement Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.