COBB’s unique CobbleStones are a sustainable and renewable resource made from coconut husks, a by-product of the coconut industry. They are eco-friendly, lightweight and super-efficient, enabling you to start cooking within 5 minutes of lighting. CobbleStones use rapid ignition technology to burn hotter and longer than conventional charcoal. Each CobbleStone is 1.4″in thick, weighs 1 lb, has a diameter of 6″ and can last for around 2-1/2 hours. Each CobbleStone is wrapped individually to prevent dampness and ensure easy lighting. Clean up is also a breeze as CobbleStones remain in one piece after burning. No more having to contend with heaps of fire ash everywhere. Six per pack.