Chevrons are available in a choice of three sizes for left or right hand turn options – 800mm, 600mm or 400mm high Chevrons. Please note that 400mm is not available with the high visibility surround option. Roundabout 606 Directional Arrow modules are available with the Ref 606 sign in 1200mm, 900mm, 750mm or 600mm diameter. Groundworks: Trench Depth: 450mm Trench Width: 300mm Trench Length: Socket length x no. of sockets + 200mm For more information and sample configurations of Chevroflex Ultra Flexible Sign System please refer to the model specification PDF.