This Saracen gearbox with a black cover plate connects to the rods by pushing them in and twisting them to lock in place.
These gearboxes have a 22mm backset and come handed.
These Saracen extension rods suit the Saracen4 & 5 gearboxes which use a Serrated type connection.
The below sash rebate sizes indicate the size range of window a pair of rods will suit.
S4510ROD1...