With cabinet space often at a premium, this innovative design makes use of unused space beneath the shelf. It features a clever, pull-out compartment that holds up to seven standard spice jars (not included). Easy to install using strong 3M VHB tape, the unit fits neatly onto your existing shelf. Hold tape firmly against shelf for 30 seconds and wait 24 hours before use. Maximum spice jar size: 5cm x 5cm x 12cm (2" x 2" x 4.75"). To clean, wipe with a damp cloth.