What we are seeing in this video is a ZAB-100-105 incendiary bomb, with it's designation clearly marked on the bomb casing
This cutaway image gives you a sense of the shape of an undamaged ZAB-100-105 (source)
With reports of incendiary artillery rounds being used by the Syrian army, and more videos of incendiary cluster bombs emerging it seems the pro-Assad slogan of "Assad or Syrian burns" might be turning into more than just a something shouted at pro-government rallies.
Update December 23rd Nic Jensen-Jones has put together this excellent post examining the payload of these bombs that's well worth a read.
First Evidence Of Incendiary Submuntion Cluster Bombs Used In Syria
Clear Evidence Of DIY Barrel Bombs Being Used By The Syrian Air Force
Heavy Weapons And Surface To Air Missiles Captured From The 46th Regiment Base
Video Shows Captured SA-16 And SA-24 Surface To Air Missiles
Unexploded Cluster Bomblets Repurposed As DIY Rocket Warheads
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