This rear door glass is for Post 2002 rear doors for Land Rover Defenders. It is fitted with a rubber seal. Either re-use your old seal or purchase a new seal. This comes in 2 versions, one with the screen printing for the High Level Brake light and one without.
NOTE : Carefully remove rear door glass without damaging the rubber - as you may want to re-use it (although you can buy a new seal in this product's options). Carefully remove brake light from old glass as you will need to glue it to the new glass.