The Corpkit Line for Extra Capacity 3" Minute Book This minute book's binder has a Specially Designed Inside cover pocket to hold additional important papers, 2 Business Cards & a CD. Also has 3" binder machanism for additional capacity. Add a slipcase or minute paper for an additional charge. Available in Black, Burgundy or Blue. Order Form Instructions * When filling out this order form a "*" to the left of the option indicates Required Fields listed below. *When typing Name of Entity type it exactly as you wish it to appear on the Binder. The spine of this binder measures 4". The ring capacity is 3".