This is the the best and most powerful camp saw in a world.  Folds into a linear tube 25" long. 
 Weighs approximatey 1 lb 8oz  (700 g).  Assembly time - less than 1 minute. 
Can be used by one or two people.  Swedish blade, standard size, replacable.  Very sturdy, undestructible and safe.  Comes with a nice mesh bag too.  
It took us almost 5 years to design and refine this product.  We consider it a must-have item in all our expeditions.  Probably, the most valuable piece of gear besides your tent and sleeping bag.