Please note this is the left handed 90 degree external angle roof tile. External and Internal Angle Tiles are specifically for use with vertical plain tiling. External Angles are available in left-hand and right-hand for a 90 plan angle, and are available in all Concrete Plain Tile, Heathland and Rosemary Clay Plain Tile colours. Internal Angles are available in all Rosemary Clay Plain Tile Colours, left-hand and right-hand for 90 plan angle only. External Angles are also available in left-hand and right-hand for a 135 plan angle in concrete colours Slate Grey, Terracotta, Tudor Brown, Rustic Red, 02 Brown, Antique Red and Cotswold.