Prevents blockages: This plastic mesh guard prevents leaves, twigs and other large debris from entering the gutters, which helps to keep them free flowing and working as they should Save time and money: Keeping the gutters clear reduces the need to clean them, and clear gutters can reduce damage from water to walls and foundations Expand the lifespan of your gutters: By preventing standing water (which is heavy) this mesh reduces stress on gutters and fasteners, which can add years to the life of a gutter Discourage pests and increase hygiene: The mesh stops rodents, birds and insects from nesting or breeding in the gutters Can improve rainwater harvesting: If you are a keen gardener and harvest rainwater into a waterbutt, this mesh can improve the quality of harvested rainwater