This is 4 tier wire shelf,all the shelf is can adjust height. This Heavy Duty 4-Shelf Metal Shelving Unit in Black Steel Finish is made of steel wire shelving.The weight limit for each shelf is 250 pounds, and the total weight limit for the entire shelf is 1000 pounds. The storage shelves provide an enormous amount of space for you and no occupy too much space.You can use this wire shelving in the kitchen bedroom garage and more. Tools, books,household appliances and other things can be placed on this wire shelving.Features:Heavy Duty 4-Shelf Metal Shelving Unit in Black Steel FinishEASY TO ASSEMBLEThe storage shelves is easy to assemble, all parts packaged for idiotsThis wire shelf structure is very simpleNo tools required to assemble itThe wire shelving unit is simple to assembleYou only need to spend 15min to install it.storage shelves wire shelf wire shelving unitADJUSTABLEYou can adjust the height of the storage shelves according to the size of the itemThe spacing of each layer of this wire shelf can be adjustedshelves adjustable leveling feet allow the wire shelving unit to be placed on uneven groundA simple twist is all it takes to stabilize.wire shelving unit wire shelf storage shelvesLARGE STORAGE AND STUDYThis storage shelves provide an enormous amount of space and strong shelvesThe wire shelving unit doesn''t occupy too much space, but it can create more additional spaceThe wire shelf total unit weight capacity is 1000 lbs.Wire shelf storage shelves wire shelving unitMULTIFUNCTIONALThis wire shelf is for a wide range of applicationsYou can use this storage shelves in a variety of places, such as the bathroom kitchen garageTools, books,household appliances and other things can be placed on this wire shelving unitWire shelving unit storage shelves wire shelf100% SATISFACTION GUARANTEEWe guarantee you"™ll love this wire shelvingBut if you"™re not satisfied with this wire shelving, please get in touch with usDimensions:36"L x 14"W x 54"HShipping Weight: 20lbs.