5 Star Office A4 file dividers contain Jan-Dec separate Mylar reinforced coloured tabs to help keep your documents organised in your ring binder or lever arch file. File dividers are a convenient way of keeping track of your documents when you have them stored in folders. The file dividers from PremierTeam are made from quality Mylar reinforced polypropylene for additional durability and contain Jan-Dec separate sheets with brightly coloured tabs to keep your work separated. Suitable for all types of folders and available as a single set of dividers.