When gardeners asked us for a taller cloche, we took a practical approach and designed an extension for our existing and best-selling Chicken Wire Cloche. No need to buy two separate cloches — once plants start to outgrow the basic cloche, just add this base to give them more 5.5″ more headroom and diameter, for total dimensions of 21.5″ dia. x 18″ H, once installed.