The line of Elite Series products are carefully selected to fit within our idea of quality and price. The Elite Series are engineered specifically for heavy-duty professional use. This line of products are considered heavy-duty and commercial grade engineering supplies. If you wan't the best blueprint rack or engineering field book, the Elite Series will hold up to the job. They are made with thicker materials, larger and stronger components where needed, and really intended for the Professional or Commercial User. Designed and made well, these products are made to last and stand up to the demands of daily use. With close to 30 years of experience of dealing and working with products in the architectural, engineering, and construction market, it has allowed us to hand select products that are designed to work well and to the highest standards of quality. When you're looking for the best, try Elite Series.