Boska Holland Safe Fondue Fuel with Flame Regulator, Set of 2, Up to 5 Hours Burn Time, Reseal able, Universal Fit READY TO GO: Pre-filled, odorless burners will burn for 5 hours total - just light the wick, and when you're done seal it up again to use next time SAFE: The special fluid only ignites in the burner via the wick, so if there's any spillage, there is no fire risk ECO FRIENDLY: Made of recycled and recyclable materials INCLUDES: Two burners and a flame regulator TRUSTED SINCE 1896: Boska Holland has built up their Cheesewares expertise over a long and rich history that started in the cheese heart of the Netherlands