Description Optimill Window Blocks for Land Rover Defender – Land Rover Defender Windscreen Blocks. – These windscreen to bulkhead blocks are made from Billet aluminum 6082, which is far superior to the original cast aluminum ones. – Will not corrode and bubble unlike the genuine ones. – Manufactured to the highest standard in the UK by Optimill. – Polished and anodized to maximum of 25 microns. – Supplied in pairs. PLEASE NOTE: We recommend that no TFR (Traffic Film Remover) solutions found in some cleaning products, should be used on our anodized products.
