Size:70*29mm Tested to BSEN(1303: 2005). Tested to 100,000 cycles. Over 30,000 key combinations. Secured by design. Comes with two fixing screws 6 pin cylinder. Comes with 3 keys. How to measure your lock: Remove the fixing screw which is located on the main door gear just beneath the latc-h. Put the key in the lock and turn it 25 degrees clockwise or anti clockwise. The lock should now slide out towards you. Take a ruler or tape measure and measure from the centre of the fixing screw to the outside edge. This is size (A) Now measure from the centre of the fixing hole to the other side of the cylinder. This is size (B) Now to measure size (C), measure the entire length of the lock. This should be equal to (A) and (B) added together. For more help with measuring your lock, please refer to the diagram in the pictures. Alternatively you can contact us using the contact us tab. Package included: 1 * Door Lock Cylinder 3 * Keys