A must have essential for using the UK's inland waterways system. This lock windlass (some times known as a lock key) is the most common type in use and can be used to operate the locks, movable bridges etc. on over 3000km of Canal and River Trust waterways, as well as Environment Agency controlled waterways.

This galvanised double headed (has two different sized females to engage with male lock spindles) lock windlass has an approximate length of 280mm (11")