3 PACK Goldwell StyleSign Hold 4 Strong Hairspray 300ml Give your hair strands a flexible to ultra-strong finish with the Goldwell StyleSign Hairspray Strong Hairspray. The Goldwell StyleSign Hairspray Strong Hairspray helps you to achieve long-lasting styles with high humidity and frizz protection for up to 72 hours. This hairspray features a holding factor of 4/5, helping to ensure your style stays exactly where you want it both day and night!