Upgrading your office space with quality storage solutions will help you stay organized and productive. Our Desk Top Riser is perfect for uncluttering work surfaces and keeping supplies within reach. Creates additional storage space on desk (not included) Chrome-plated steel construction (2) 800 lb capacity wire shelves easily adjust in 1" increments along posts Made for indoor use, dry storage only To securely set and easily release shelves, tap their corners with arubber mallet. View ourWire Shelving Size Guideto see actual outer and inner dimensions.