Four figures on 20mm bases fit accross the battlement. Can be used for 25 or 28mm figures. An entire unit of 20 to 40 can fit inside. The size is approximately 3.5" wide x 5" long x 8.5" tall. The height to the lowered assault bridge is 4.75". Specifically designed to use with the H&A castles, but can be used with any similar scaled fortification wall. The model rolls and has a functional assault bridge with metal chain and plastic ladders between the levels. The model is precision cut from birch plwood and veneer and includes 80 of the laser cut cowhides to cover the front. The model shown above is unpainted and can be used as assembled if you want your siege tower to have that newly assembled look.