ProGel® Grey Ingredients: Glycerine Silicone Dioxide Propylene Glycol Colours: E124 E104 and E133 Each gel comes in a colour co-ordinated and clean-to-use plasti c tube and contains a tamper evident seal under the screw top. Simply peel away and squeeze the gel out of the tube. No more messy c ontainers making your tool box full of colour spots and no more wasted time trying to identify a specific colour as the printed tube makes this a thing of the past! Nut Free GM Free Gluten Free Suitable for Vegetarians Certified Kosher Suitable for Halal Diets