... , Long-time Burning. (2) hardness,smokeless. (3) odourles (4) round tablets Shisha charcoal are used for shisha smoking and burning incense.Material: Hardwood charcoal, Apple wood charcoal ... .Item: 22mm, 27mm, 33mm, 35mm, 35mm (with star), 38mm, 40mmCharacteristics: Instant-Lite, Long-time Burning, hardness ...