The Welsh History ruler is plastic and measures 30cm long. It shows measurements in both inches and centimetres. On the front of the ruler is six colour images of various Welsh castles, a banner and a seal.
The reverse of the Welsh History ruler shows a comprehensive timeline of important historical events that have shaped Wales. The ruler starts from C.700B.C. and the Iron Age and finishes at 1999 when The National Assembly for Wales opened in Cardiff.