Add-On wire shelving can be attached to your existing shelving unit at a right angle to make a great corner storage piece or in an end-to-end configuration for rows of storage. Attaches to existing chrome wire shelving units for additional storage space Stores up to 500 lbs per shelf, evenly distributed Shelves adjust every 1" along posts Made for indoor use, dry storage only S-Hook 2-Packrequired per extra shelf To securely set or quickly remove shelves, tap their corners with arubber mallet. View ourWire Shelving Size Guideto see actual outer and inner dimensions. Availability:Ships next business day