The flowers once enclosed within the paperweight will last forever as no humidity can ever come back into the 100% sealed paperweight. As advised in each consultation via telephone, face to face or email it is impossible to guarantee the final colour of the specimen as all flowers may react when encapsulated. We cannot take responsibility for any air bubbles or particles that may become loose once your flowers have been encapsulated, nor a line within the paperweight which is from the pollen from the flowers (as this has nowhere to escape too).