When inspiration strikes, make sure the Martin Universal Martin Universal Avanti II Metal Artist Easel is nearby. Constructed of powdered painted steel and chromed steel, this easel was designed to withstand 10 hour days of daily use for years. The double-post mast base features a single-mast upper support. This easel has an adjustable tilt, a large supply tray and canvas block, and easy-turn knobs for quick adjustments. About Martin Universal/F. Weber Co. For a century and a half, the name Martin Universal and F. Weber Co. have been synonymous with quality art materials. Established in 1853 in Philadelphia, Pa., the Martin/Weber is the oldest and one of the largest manufacturers of art materials in the United States. * Constructed from heavy duty steel * Includes 3.5 inch tray * Some assembly required * Maximum canvas size: 72 inches * Dimensions: 21.5W x 19D x 81H inches