Since 1980, Gamblin has handcrafted luscious oil colors and contemporary painting mediums that are true to historic working properties, yet safer and more permanent. Gamblin Solvent-Free Oil Gel Mediums extend that mission by giving oil painters alternatives that don't require the use of toxic solvents. - Gamblin Oil Medium - Solvent Free Gel Medium, 150 ml tubeGamblin Oil Mediums, SLVNT FREE GEL 150ML -