This liquid solution will deter spiders from entering your home. It’s distilled from a natural extract of chestnut oil that will repel these long legged creatures without harming them. Simply make a light spray around window and door frames and by any gaps in skirting boards and they just won’t visit for a while. Can be used outdoors as well, in garden sheds, garages,green houses and even caravans. Spider Block is a harmless solution that will not hurt humans or animals, is most effective and leaves no stain.