From the release:
Assault your enemies ramparts with the Sally 4th Siege Tower!
The siege tower is designed to work with any of our 20' castle wall models.
The height to the top of the siege tower is 220 mm
Model features hinged ramp, ladder to rear and 4 stories to hold your assaulting troops. Top floor has space for 8-9 archers to fire down on to castle walls.
This is an easy to assemble laser cut mdf kit, designed for 28mm or 25mm models.
The kit contains one siege tower model and is supplied unpainted.
The only product you need to assemble this model is PVA Woodwork Adhesive.