Ranger's Multi Medium is an artist quality, acrylic gel medium that can be used as a super strong adhesive, acrylic paint extender or sealer. Use it in many mixed media techniques including image transfers or resist. Multi Medium is non-yellowing and dries clear. Acid free and non-toxic. Available in matte or gloss finishes. Also available in three sizes: .5 oz bottle, 1 oz jar with built-in brush, or a 4 oz jar; prices vary.