Bandai High Grade Gundam is denoted by the acronym HG and is 1/144 scale. Most HG Gundam are when fully built are between 8cm to 12cm. Building of these kits is very enjoyable and is not overly complex. With the exception of 1980's kits there is no need for glue or paint as they come already pre-coloured and snap together. HG Gundam are perfect for all skill levels of builders from beginners upwards. The amount of detail and poseability of these models is quite amazing and they look super cool when displayed.