Material: Iron material, rust-free, smooth, will not hurt your hands. Easy to Organize: The dividing net can be installed on your shelves to organize and classify your goods for quick identification. EASY TO INSTALL: We have clips that secure it to your shelves and can be done in minutes. Size Instructions: Please accurately measure the height and width of your heating shelf and choose the correct size to purchase. Perfect service: If you are not satisfied with your purchase or have any questions, please "Contact Seller". Our excellent customer service allows you to have no worries after purchasing.