to assist you. Determine the thickness of your shelf before ordering the mug rack. Heavy objects may require the installation of screws for added support. The load weight for each hook is 3KG/6.6 lbs. The number of cups that can be stored depends on their size and weight. The 3pcs white mug holder contains 6 hooks each, allowing for space-saving storage. The multi-function hanger can be used to hang various kitchenware. If you have any concerns about the product quality, please feel free to contact us via email.