This ingenious cold frame does double-duty! With the top panels closed it's a mini greenhouse. In spring, use it to set plants out weeks earlier and to harden off transplants. On warm days, slide the top panels open for ventilation without worrying about pests damaging plants — an integrated screen foils most insects, slugs and wildlife. You can water right through the screen, too. The 8mm thick, twin-wall polycarbonate includes a 10-year guarantee against UV damage, and a no-drip coating reduces condensation. Includes ground anchors.