Center type drawer slide Features: 1)Material:steel;zinc plate steel 2)Size:12",14",16",18",20",22",24" Center type drawer slideFeatures:1)Center type drawer slide2)Material:steel;zinc plate steel3)Size:12",14",16",18",20",22",24"4)Finish:zinc plate 5)Color:zinc 6)Wheel:ball bearing Outer packing:20sets/corrugated carton or 10sets/corrugated carton