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lawn care 
lawn aerator 
Roller fitted with points for puncturing the lawn in order to aerate it and facilitate the entry of substances such as water and fertilizers.
lawn rake 
Instrument equipped with flexible metal tines, arranged like a fan, used to gather dead leaves, cut grass or bits of debris on the lawn.
roller 
Tool consisting of a hollow cylinder, filled with water or sand; it is rolled over the soil in order to tamp it down and even it.