promotion spiral book: 1)Cover:art paper, paper, hard/soft cover 2)Inner: ... -free size 3)Size:various sizes are availabl promotion spiral book: 1,MaterialCover:art paper,paper,hard/soft coverInner:we can ... , pcs /single-corrugated carton,pcs/dual-corrugated carton10,Payment L/C or T/T11,Delivery portNingbo or Shanghai12,MOQ10,000 pcs