The Highlander 100ml Trek Midge Tick Spray is an essential that every explorer should carry while going on a trekking trip. Formulated to face extreme midge conditions this spray can offer lasting protection. Its main component is Saltdin which can help you stay bite-free for up to 8 hours. This item comes in a 100ml bottle that is sufficient for your entire family. So don’t forget to keep it in your rucksack the next time you plan a trip., Lasts for up to 8 hours., Contains Saltdin., 100ml family bottle., For extreme midge conditions., Size: 120ml.