A constitution establishes power and functioning of the government, how this should be carried out and the rights of those being governed. One feature of the UK constitution is that it is uncodified. This means that it is not written down in one document, unlike the American constitution. An uncodified constitution is uncommon and only a few countries such as New Zealand still have an uncodified constitution. Instead of being put into one document, the UK constitution is formed on convention and tradition such as the Salisbury convention, which prevents the House of Lords opposing policy put forward in the government manifesto.Another feature of the UK's constitution is that it is flexible. Through being uncodified, the UK constitution has no higher form of law. It is far easier to adapt and amend the constitution in comparison to America because constitutional laws are made through the same process as everyday laws. This creates flexibility because it allows for the constitution to evolve with the times and work with modern views and thought. By not being written down, the UK constitution is easily interpreted but creates difficulty because it is not in one document. This means that although it is flexible, a lot of the electorate do not know what they are entitled to and what needs to evolve in the constitution.