Fire Wire. Fire Wire Flexible Grilling Skewer is an ingenious cable-style grilling skewer that makes grilling easier than ever before. Made of 100% food grade stainless steel, Fire Wire offers flexibility like no other skewer on the market. Fire Wire is twice as long as a traditional skewer and comes with a lifetime guarantee. With Fire Wire you do not have to touch the food twice; simply marinate in a bag on Fire Wire and place the food on your grill.