Spider Ex Aerosol Spray 300ml. 5 "So far so good." Ann 16 July 2018 I have a very real phobia towards spiders. I used to use conkers from a nearby tree but that has been cut down so thought I would give this a try. First used it a few weeks ago and so far no spiders. It does not leave either a smell or stain on window sills. Would highly recommend. A further bonus for me is that there is not a picture of a huge spider on the tin! A note from the team Thank you for placing your review. I'm delighted this product works so well for you!