Snap this extension onto the cage of our Tomato Success Kits to provide an extra 19" of support for extra tall, indeterminate tomato varieties. We recommend using just one extension per cage. Adds a full 19" of extra support to the Tomato Success Kit Snaps on in minutes Note: This extension fits onto the rectangular-style cage of our Tomato Success Kit (not for use with square cages) Custom fit for the cages of our Tomato Success Kits Not for use with standard tomato cages 14-3/4" W x 22" L x 19" H Made of steel and plastic Gardener's Supply Exclusive