I was hesitant to buy this product, but I am glad I did .Thanks to my knowledge gained in practice, I know that these drawer slides have an impressive bearing capacity, making it perfect for industrial and scientific purposes. The 3 section extension is smooth and easy to operate, making accessibility to my drawer contents a breeze. However installation may require some effort due to the industrial hardware's weight and size. Overall, a great product for anyone who needs durable and reliable drawer slides..