Our magnetic shelf for refrigerator have a 1.7 inch guardrail will prevent items from falling and make storage cleaner. Extra 4 removable hooks that can be attached to the rack on the side for hanging kitchen gadgets. The bottom of the spice rack organizer is grid style hollowed out to make your spice jars dry faster to keep them clean and sanitary. Can be used on all magnetic surfaces of your home, kitchen or laundry room, such as the side wall of your refrigerator to hold spices, oils, utensils, towels or other essentials. Our moveable refrigerator shelf can also be used on the side of an oven, microwave, coffee machine, washing machine, classroom, whiteboard or tools wall for storage.