Robertsons Blue Food Colouring is ideal for baking, for those wonderful edible colour treats. Product Brand Robertsons Product Width (mm) 40 Product Height (mm) 84 Product Volume 40ml Product Depth (mm) 23 Unit of Measure EA Main Barcode 60017031 Ingredients Water, Propylene Glycol, Colourant (E122, E124). Preservatives: Propyl-P-Hydroxy Benzoate.