Get the most smoking versatility possible out of your 18.5 in. smokey mountain cooker smoker. The Weber expandable smoking rack is designed to let you experiment with other smoking methods, in addition to the traditional smoke foods such as roasts and whole cuts of meat. The expandable smoking rack comes complete with 3 support bars that span the width of the rack and 5 hooks that fit over the bars. To use, simply remove the top cooking grate and replace with the rack.