The iqbana luzern planter features a highly insulating design which helps protect roots against frost and heat the plant wont suffocate in the pot due to the breathable material used in its design this material is known as epp expanding polypropylene the modern and unique design of these planters are sure to increase your gardens appeal as well as adding a nice touchsize guidebull black cm w 78 x l 195 x h 195bull grey cm w 78 x l 195 x h 195