Expandable post binders from Dilley enable you to easily add pages as your needs grow. Post binders give you the choice of fixed or expandable construction, in capacities from 1½" to 4".

• Easy expansion accommodates the addition of new pages
• Expandability reduces the need for additional binders
• Allows easy reading into margins
• Heavy-duty construction-functional and durable

M-450 Lever Lock
A Self-expanding angle-back post binder constructed from heavy-duty thread based buckram turned and adhered over solid binders board. 75% expansion over minimum capacities of 1½", 2", 2½", 3", and 4".

M-450E-SP55
Economical, self-expanding angle-back binder constructed from 55 pt. poly plastic using the QA-CAN-VIN-4 mechanism. 75% expansion over minimum capacities of 1½", 2", 2½", 3". Also available in heavier 75 pt. poly.

M-333
Economical turned-edge binder constructed from heavy-duty thread based buckram turned and adhered over solid binders board. Very durable. Solid or flexible back. Rivets show on outside cover. Fixed capacity available in 1½" up to 3".

M-365
Economical vinyl binder constructed from top-grade vinyl sealed over suppporting board. Rivets show on outside cover. Fixed capacity available in 1½" up to 3".

M-325
55 pt. and 75 pt thickness cut flush. Solid one-piece poly plastic. Provides 25% expansion over minimum capacity, 1½" up to 3".