The Wabash Valley Prestige Series Portable Picnic Tables without backs. Select either the 4′ or 6′ Length. All Prestige style tables have a rolled edge on the seats for added comfort. All framework on the portable unit is constructed of 2 3/8″ OD tubing. Umbrellas can be used with these tables, stands are needed (Umbrellas must be secured to the tables).The tops and seats are coated in our rugged Plastisol coating, while the framework is coated in our AAMA 2604-05 compliant powder-coating – Choose between our DIAMOND PATTERN or PERFORATED PATTERN.