Purchase STL files to print unlimited quantities of roof box keys on your own printer at home, no paying for or waiting for deliveries, below are all the individual key files for halfords and thule roofbox, roofbar and roof rack keys, select the keycode that matches the number stamped on your lock or spare keys which are numbered from N001 through to N250 to purchase the STL file you require for your specific lock, please understand any limitations of your chosen CNC material or print filament for suitability as even steel keys can and do break.we have free files that can be downloaded to test suitability prior to any purchases, don't worry we do not need your postal address, phone number or any card details for downloading and using the FREE roofrack key test file,