Durable Alloy Steel Shelves With Spray Finish, Resistant To Fading And Scratching, Ideal For Storing Kitchen Items Or Shoes In Entryway Cabinets. Smooth And Quiet Operation With Damping Slide Rails, Closed Double Damping Buffer Track Minimizes Dust Accumulation For Enhanced Functionality And Easy Access Space-Saving Slim Design, Fits in Wardrobes or Small Corners, Maximizes Storage Without Compromising Capacity in Compact Areas Customizable Storage with Single-Row Hole Adjustment, Easy Layer Spacing for High Boots or Low-Top Shoes Quick And Easy Installation With Screws, Fits Cabinets At Least 31cm Wide And Depth Accommodating Rack Plus 2cm, Retractable Frame Extends From 0 To 12cm.