RANGER-Claudine Hellmuth Studio Multi-Medium. Studio Multi- Medium is an artist quality gel that can be used for multiple craft projects: all-purpose glue; image transfer; sealer; paint extender; and to create glazes. Acid free. Conforms to ASTM-D4236: non-toxic. Packaged in a 2-1/2 by 2-5/16 -inch. wide mouth shatterproof jar. Contains 4 fluid ounces. Colour: clear. Made in USA.