I recently purchased a set of drawer slides for my industrial hardware workshop, and I must say I'm impressed with the bearing capacity and the smooth extension provided by these slides .Based on my observations these slides provide an excellent solution for any industrial and scientific application where sturdy and reliable extending platforms are needed. The durability of these SLIDES is also top-notch, which makes them ideal for heavy-duty loads. While the only downside is the price, I can assure you that this product is worth every penny..