The Safco 48 in. Commercial Extra Shelf Pack - Set of 2 is a pair of tough extra shelves to give you additional space. These shelves are made of steel and each shelf has the capacity to hold up to 500 pounds of evenly distributed weight. The shelves are coated with a black powder finish to increase durability and resistance against wear and tear. The shelves can be adjusted in increments of one inch and can be secured in place with snap-together clips. About Safco Products Safco products were specifically developed to meet the changing needs of the business world, offering real design without great expense. Each product is designed to fit the needs of individuals and the way they work, by enhancing comfort and meeting the modern needs of organization in the workplace. These products encourage work-area efficiency and ultimately, work-life efficiency: from schools and universities, to hospitals and clinics, from small offices and businesses to corporations and large institutions, airports, restaurants, and malls. Safco continues to offer new colors, new styles, and new solutions according to market trends and the ever-changing needs of business life. * Extra shelves for 5241BL commercial wire shelving (sold separately) * Shelves can be easily adjusted in 1-inch increments * Holds weight up to 500 lbs. per shelf * Durable black powder coated finish resists wear * Includes snap-together clips * Easy installation in minutes without tools * Dimensions: 48W x 18D x 1H in.