The Medium & Gloss Varnish is universal and provides 2 functions: it can be used as a varnish for finishing and / or as a gloss medium when used with acrylic.When used as a medium, it gives the paint film a better grip and increases depth of colour, intensity and brightness.As a varnish this can be used to protection the painted area and provides and even surface finish.Abstract is notable for it's innovative and flexible packaging that fits comfortably in the hand is highly portable and strong (so much so that it can even handle the pressure of being stepped on ) - plus the paint is better preserved because air cannot get inside the pouch. There is no waste no air bubbles and it can be easily squeezed down to the last drop.120ml / 4fl. oz.