The 12.6*11.4*6.3 under shelf storage basket organizer is made of premium anti-rust stainless steel and plastic coated wire which makes it last for a long time. Hanging metal wire basket comes with 2 pieces stackable wire wall baskets can be used in two stacks save space more so that you can so you can place cup plate napkin wrap or anything you need for easy take and go. These under cabinet metal wire storage bins are lightweight and sleek but sturdy enough to hold up to 10 lbs without bending or sagging. Shelf securely attaches to top shelf by simply sliding in no hardware needed. Wire shelf can be repeatedly moved for optimal storage and removes easily with no damage to original shelf.