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.