Take your pick of push or pull to activate what ever is natural to you; because if there is a fire you won’t bother to think about it. Once activated, Fire Bottle brand extinguishers completely discharge 2 or 5 lbs. of 1211 halon. 1211 is a clear liquid vapor that will quickly blanket the area of discharge to eliminate combustion. This bottle is rechargeable as well. The long bottle is 4-1/4" diameter and 11" long at the shoulder of the bottle. The entire system weighs 10 lbs. total while short bottle (4-1/4"x8") weighs 9.5lbs. The 2 pound system weighs 6 lbs.