The one you'll need depends on when you first got a quote for or bought your policy:
 
Home insurance product information document - contents

Home insurance product information document - buildings

Home insurance essential information

Home Choice policy wording (for policies quoted after 2nd July 2017)

Home Choice policy wording (for policies quoted between 18th October 2015 and 1st July 2017)

Home Choice policy wording (for policies quoted before 18th October 2015)

Home insurance policy wording