This mulching kit for EGO ride-on mowers is an accessory that improves the quality of your lawn mowing. The discharge blocker is a device that blocks the opening where cut grass is ejected. This means that the grass will no longer be ejected from the side of the mower, but will instead be cut into particles and dispersed on the ground.nnCompatible with the EGO ride-on mower: ZT5200E-L