Install or replace all lock cylinders on your Thule products and use the same key for all. Specifications Model number 450200 Model number 450400 Model number 450600 Model number 450800 Features Set of 2 locks, all using the same key Including grip-friendly Thule Comfort key Replace the locks in your Thule product in a few easy steps Set of 4 locks, all using the same key Including grip-friendly Thule Comfort key Replace the locks in your Thule product in a few easy steps Set of 6 locks, all using the same key Including grip-friendly Thule Comfort key Replace the locks in your Thule product in a few easy steps Set of 8 locks, all using the same key Including grip-friendly Thule Comfort key Replace the locks in your Thule product in a few easy steps