Coco Nara is 100% natural hookah charcoals and is made from compressed coconut shell. Tasteless and burn up to 60 minutes. You can light these coals on a stovetop or an electric coil burner. It takes around 5-8 minutes to completely light and glow red. Coco Nara has been ranked as the number one natural coals of choice for many hookah lovers. Specifications: 100% natural charcoal made from coconut shell , not quick lite coals , contains no Sulphur , burns up to 60 minutes , leaves less than 5% in ashes , clean burning & tasteless , does not produce any sparks while lighting or using , economical, not a single tree was cut to make this product, dimensions: 25mm x 25mm x 17mm