Get ready to celebrate your co-workers birthday with COS catering and party supplies. Ranging from napkins and cutlery to balloons and event decorations, COS has everything to ensure that your office party goes off without a hitch. Choose from a variety of disposable and easy to clean up plastic plates and cups, including a vast range of planet friendly BioPak options. If plastic isn’t what youre looking for, we also have a huge range of glasses and crockery mugs and plates.