... very hard,not easy to break. 3.odourless 4.brning for long time ,about 60 minutes. Shisha charcoal are used ... 35mm, 35mm (with star), 38mm, 40mmCharacteristics: Instant-Lite, Long-time Burning, hardness, smokeless, odorless, sparkless.Packing: CustomizedOur company has ... Europe, America, South Africa Material:apple wood charcoalBurning time:at least 65 minutesproduct size22mm 27mm 33mm 35mm 38mm ...