to assist you. We also provide screws with the product for your convenience. Remember to measure your wardrobe and cupboard before placing an order, as the mug rack only fits shelves with a thickness of 0.86"/2.2cm or less. If you need to hang heavy objects like cups, it is recommended to install screws. However, if you are hanging lighter items like clothing keys, screws are not necessary. Our product is made of quality metal and can hold a maximum load weight of 3KG/6.6 lbs. The hooks on each holder are placed 1.6”/4cm apart, allowing you to store multiple cups depending on their size and weight. The 3pcs white mug holder is designed to save space and keep your cabinet or shelf organized. It can hold coffee cups, tea cups, and mugs. Additionally, it serves as a multi-function hanger for any kitchenware you prefer to hang. If you have any concerns about the product's quality or any other questions, feel free to email us. We will gladly provide assistance.