1.The product can be assembled into 2 heights, 22.6 inches and 21.1 inches, according to actual needs. Before purchasing, please confirm the height of the cabinet door and whether the partition inside the cabinet affects its use.2.Premium Material-The shelf adopts solid 304(18/8 stainless steel), durable, waterproof and rustproof.3.Two installation methods: hanging or drilling installation, suitable for different ways of use. Note: For hanging on the door panel, the thickness of the door panel should not exceed 0.8in (2cm). For drilling installation, the thickness of the door panel should be more than 0.4in (1cm).4.STABLE TO USE: The pot lid rack is fixed in a triangular shape with 2 hooks on the top and 1 adhesive sticker fixing on the bottom to make sure the rack won't wobble.5. When installing onto the cabinet door, please reserve a particular space for the lid on the top so that the cabinet door can be closed smoothly.6.The product consists of three parts and needs to be manually connected with screws.