When ordering your door you will be asked what type of hooklock cyclinder you require. You have 2 choices:

Key / Key (fitted as standard)- with this item, you have a "key hole" on the internal and external of your door to operate the lock.

Key / Thumbturn (£10 extra)- Instead of a key hole on the internal, you have a thumbturn. No key is nessesary to unlock the door from the inside.