The double shoulder harness with strap protection is compatible with EGO multi-tools and all brush cutters/trimmers except the BCX3800 brush cutter. This brush cutter harness is designed to distribute the weight of the tool over both shoulders to reduce fatigue and minimize the risk of injury. It is equipped with a protective pad for the strap, which provides additional comfort when using the brush cutter. Compatible with EGO tools: String trimmers: ST1610E-T, ST1530E, ST1510E, ST1400E-ST, ST1300E-S Brush cutters: BC3800E, STX3800 Multi-tools: PH1400E