A range of seats in plastic for use in schools and public buildings. Conforms to BS 1255. White Finish. Different colour options available. In the early years of the 19th century the company that would become Armitage Shanks was founded with a simple objective; to produce sanitaryware of exceptional quality. Now, in the early years of the 21st century, this philosophy, supported by investment in technology and traditional manufacturing skills, still remains at the core of our business.