The EGO POWER+ Commercial Metal Blade Combo Kit is a great addition to your EGO POWER+ Commercial String Trimmer, making it convenient and efficient to get all your lawn trimming and edging needs accomplished. The EGO POWER+ Commercial Metal Blade Combo Kit is equipped with the EGO 3-tooth Metal Blade, Trimmer Guard and Safety Barrier Bar to help get tough jobs done with professional grade results. The EGO 3-tooth Metal Blade cuts through tough brush and dense weeds in challenging conditions. The EGO Trimmer Guard provides additional protection from flying debris. The Safety Barrier Bar easily mounts to the shaft D-handle for ultimate control and comfort. The Combo Kit is compatible with the EGO POWER+ Commercial String Trimmers (STX3800, STX4500) and Commercial Brush Cutter (BCX4500).