Strong iron construction provides a solid, stable base for the Revolver Whiteboard. With the support, you can easily flip the board through 180 degrees to make use of both the plain and gridded sides. The base sits on 4 swivel castors that provide easy mobility. They can be locked when the board is in use to hold it secure. This item has been designed for use with 1200x900mm whiteboard (BQ11052, sold separately).