This product is manufactured using plastic and stainless steel pipes.The advantage of this product is that it is a DIY product in line with the recent trend.You have to assemble the DIY product yourself,but here are the advantages of this product.It can be easily assembled and remains strong after assembly.Some DIY products require multiple tools for assembly,but this product can be assemblied simply by beating it lightly with the plastic hammer enclosed with the product.This product consists of two,three,and five stages.It can be used as a single product,of which 2nd,3rd,and 5th tier products.If you use only the connecting rod,it is good to expand and use it as a system hanger.the 2nd x-layer is a product where you can hang top and bottom clothes,the 3rd x-layer can store clothes on top and various items on the bottom.Organizing stage 3 and stage 5 are products that can store various items.You can freely organize your room by using this product as a system hanger.Convenient assembly!!! Generous storage!!!.Its a STEELART System hanger.Thank you