BUY THREE GET ONE FREE OFFER :
ADD 4 COLOURS TO YOUR BASKET
YOU ONLY GET CHARGED FOR 3 AT CHECKOUT (1 free colour)
ADD 8 COLOURS TO YOUR BASKET
YOU ONLY GET CHARGED FOR 6 AT CHECKOUT (2 free colours)
ADD 12 COLOURS TO YOUR BASKET
YOU WILL ONLY GET CHARGED FOR 9 AT CHECKOUT (3 free colours)