InvisaFlow 7400 Multi Use Guard Channel guard is a multi use guard designed to be used as a downspout diverter or splash block, fence edging, or mow strip Fill with river rock or gravel and install the channel guard below a gutter downspout to divert water away from foundation Install the channel guard under a fence line or along a building foundation, fill with rock and control weeds while preventing fence damage from weed eaters or mowers Pre-stamped post holes for any standard size posts Slide together to fit and add multiple units together