Under sink shelf / grocery shelf / general cargo shelf. layer:PVC holder:PVC/Aluminum/ Iron Parts:1, Frame(2pcs)2, Shelf Sections (2pcs)3, Screw Nut(8pcs)4, Rod(4Sets)Creates instant storage space and easy to install and clean. Creates 2 extra shelves of storages space, each shelf supports up to 10 pounds. CD-Sa02 Under sink shelf