4 bottles for the price of 3. not only can spiders be frightening but their webs are a nuisance. so if you would rather keep your house free of spiders & their webs our new mrs cooperÂ’s spider repellent spray is just what you need. completely natural & non offensive to humans it contains an exclusive chestnut extract which spiders absolutely detest & wonÂ’t go anywhere near. this spray is a repeller & is not harmful to spiders or your pets it can be used indoors or outside & leaves no lasting residue or discolouration. for best results use every 2 to 3 weeks. available in 500ml spray. this spray really works try it!