Xtra strong six-pack: 6 x 250 ml. Hairstyle spray Xtra strong - the cult hair spray - for extra strong, long-lasting hold and volume. Application: Spray into dry hair and style with your fingers if necessary. Spray into wet or coiled hair as a blow-dry spray. This spray is also easy to use on air-dried hair. The fine hairspray is easy to brush out. Suitable for all hair types.