Material: Cold Rolled Steel Q235. 1 Pair of Heavy-Duty Drawer Slides. Please note that in order to ensure the safety of users, the heavy-duty slide rails cannot be disassembled.Please note that the installation gap on both sides should be more than 20mm/0.79in. Please allow the slight color difference caused by the shooting light and 1-3 cm error due to manual measurement, and make sure you do not mind before ordering. Feedback is very important to us. It is impossible to address issues if we do not know about them! Faction is our ultimate goal. We work hard to earn your trust and future business. A If you receive a defective item, you may return it or ask for a discount. Due to time zones, our reply to your questions may not be immediately. If it's non-workdays, please kindly be patient and wait till Monday. Easy installation, Convenient Use, Easy Operation. This item is in the category "Home & Garden\Home Improvement\Building & Hardware\Cabinet Hardware\Drawer Slides". The seller is "tnn0000" and is located in this country: US. This item can be shipped to United States.