A helmet sticker entitles you to to fly the Kettle Sings and Black Hill sites on the Malvern ridge. It costs a mere 5 pounds for life or 2 pounds for a replacement sticker. Whether or not you are a member of the Malvern Club, you may not fly these sites without a helmet sticker. In order to qualify for the sticker, you must read and agree to obey the Site Rules.