Effectively protect light shafts, gutters and down gutters from leaves, dirt and pests! Gutter protectors and downpipe protectors prevent the gutter from being blocked by leaves – and thus also prevent time-consuming cleaning operations. Light shafts and cellar shafts also need to be protected from leaves, as they are often difficult to clean. However, here is the additional factor that mice, spiders and insects also use these openings to get into the house. A light cover can quickly and easily prevent this.