Klinta's safety matches and covers are made from FSC wood and are 100% biodegradable. The natural colored lighter caps are free of heavy metals, sulphur, potassium chlorate and zinc oxide and are non-toxic and harmless to the environment. The entire product is manufactured in the EU. The associated metal cases add weight to the matchbox and create a luxurious feel. They provide a beautiful passepartout and help you keep track of up and down. And of course, it will be more beautiful too!