Sizes: 2 Tiers: 40"x12"x14.5" 4 Tiers: 40"x12"x30",constructed from durable iron pipes, high Quality PP Connectors, waterproof non-woven fabric tiers, this shoe tower will last long,Easy to assemble: The Unit snaps together for easy assemble, you can set it up quickly with no tools, and you can split it up into a 2-tier or 3-tier shoe rack, or stack two 4-tier to a 8-tier rack,Optional functionality: You can remove a layer to fit not only boots, heels, but also fit purses or other larger accessories.,Each Racks can store 4 to 5 pair of Shoes.