One of the commonest incendiary devices dropped by the Luftwaffe on Britain was the 1 kg incendiary bombs. These cylinders of magnesium alloy measured just over 13.5 inches (of which 4.75 inches was the tail section riveted to the body). It was 2 inches in diameter and filled with thermite. Incendiaries did not explode but upon impact a small percussion charge would ignite the thermite. The Civil Defence code-name was IB (Incendiary Bomb with alloy nose) and SNIB (Steel Nose Incendiary Bomb). Three varieties of this bomb were dropped - B1E, B1EZA and B1EZB - and dropped from a variety of containers. Te later variations had explosive charges to aid in spreading the burning thermite.
Incendiary devices could be dealt with by both the public and the Civil Defence services using a stirrup pump or a variety of devices that could 'scoop' up the device and allow its removal.