Features write-on panel on front and spine label. Concealed refillable spiral spine located on the inside of the display book for a more professional presentation. Books can be up-dated in the same way as conventional refillable display books - simply add or change pages as required by releasing the spiral spine inside the book. Rigid grey spine cover gives extra strength and durability as well as an attractive smooth finish. Long lasting, hard wearing polypropylene cover. Assortment includes: yellow, pink, blue, lime and purple.