Solid Steel Industrial Balls for Better Weight SupportThe slide rail is designed with two sets of ball bearings inside, all made of solid steel balls. In addition to maintaining the mobility of the slide, it effectively increases the load capacity of the slide. Full extension drawer slides provide easy access to the entire space and the drawers can be fully pulled out for easy storage. Rustproof, long service lifeThe surface of the slide rail has been electroplated to isolate the direct contact of water and air, so as to prevent oxidation and rust of the slide rail and improve corrosion resistance. More than 100,000 times of opening and closing tests have been carried out to verify its durability, and the normal service life of the slide rail is more than 30 years. Full Extension SlidesThe full extension slides allow access to the entire space, and the drawers can be fully pulled out for easy storage. The slides are designed with two sets of ball bearings inside, all made of solid steel balls. In addition to maintaining the smooth running of the slides, these bearings effectively increase the capacity load bearing slides. Product FeaturesAOLISHENG heavy duty drawer slides are made of high quality cold rolled steel, high strength and high density. They can withstand heavy storage without deformation. The bottom is equipped with limited rubber bumper and ABS plastic for good wear resistance and impact resistance. Tips for useThe length of the rail should be equal to the length of the drawer. The metal parts are sharp during installation. It is recommended to wear gloves for installation