Fullex Kinetica brass thumbturn 80mm overall length 40/40 cylinder sold secure diamond grade 3 star cylinder with 5 keys - anti-snap - anti bump - anti-pick- anti-drill - 1 hour fire rated cylinder to BS KM561977 perfect for  one hour fire door  - With up to £5000 anti-burglary guarantee from manufacturer - The thumbturn also has a unique push to turn feature to stop letterbox attacks - has 5 original good quality keys - You are buying 1 lock -   I also have these in keyed alike pairs so if you order 2 and want them on the same key add a note with your order asking for this (keyed alike come with 5 keys in total ) - Additional keys cut and tested before dispatch at £2.50 per key available if you require additional keys message first and I will send a buy it now for the correct amount - We post same or next day.