Equipto V-Grip 18-gauge heavy duty steel open shelf starter unit with 5 shelves. Design Benefits and Features include: industry leader in structural integrity; exclusive V-grip compression design, durable enamel paint finish, available in closed configurations. Regardless of color selected for shelving, all side and back panels are reflective white. V-Grip upright posts have an exclusive triangular design that maximizes load-bearing capability while providing a smooth front surface without unsightly holes or hardware. Versatile V-Grip uprights permit practical back-to-back assembly of shelving units, with the same, strong reinforcement that actually strengthens shelves and uprights, yet permits their easy adjustment. Shelves adjust instantly on 1-1/2-inches centers, without disturbing shelves in adjoining units. Zinc Plated Corner reinforcement inserts into upright; shelf simply fits down over it, and locks Into place. Tapered slots in uprights accept corner reinforcements for 4-way shelf support. Double-flanged upright avoids two shelves from adjoining units placing stress on a single flange. Double-flanged V-Grip uprights allow easy side-by-side assembly of shelving in rows, with the strongest configuration. Each flange of the upright supports a shelf from one adjoining unit only. Heavy duty V-Grip shelves are constructed of 18-gauge steel, and double-flanged on all four sides for maximum strength and firmness. Galvanized steel common upright clamp provides back-to-back reinforcement. Versa rack shelf beams accommodate steel shelves. Use full or partial height dividers to create custom storage bins.