Very useful
Even with long grass, I don't seem to notice big clumps of cut grass left in my wake when I'm mowing the lawn so this must be helping to churn up the grass somehow. No idea how because it is just a moulded piece of plastic.
Given its shape and size I can't understand why this wasn't integrated into the sprung flap that comes attached to the lawn mower. Having said this, it wasn't expensive and it is very useful.
Verified purchase: YesCondition: New