Features: Brand new and high qualityCompact and lightweight， can store in your pocket or hang on your keychainSerrated metal striker and flint on magnesium blockIdeal for emergencies， camping， bonfires， etc.Only for outdoor usingPlease don't let your children use it.Dimension: 75 x 25 mmMaterial: magnesium block + metal bladeHow to use: 1. Scrape some magnesium powder on inflammable material like paper or branch 2. Scrape the flint fast to produce spark so as to light up the inflammable material 
Package Content：1 x Magnesium flint