BBQ Charcoal Briquette Specification/ Material Feature:1. Synthetic Barbecue Charcoal Briquette,2. Size: 46x28mm3. easy ignite, no mars,4. high- temperature, homogeneous combustion, burn for long time,5. smokeless, innocuous, odorless, safety and non-pollution. charcoal briquette specification Fixed Carbon (%): 45-60%Ash Content..