YOUR CART IS CURRENTLY EMPTY
This is the outdoor water base for the SuperWall, sold one at a time. It adds stability outdoors, where the ground gives you nothing to anchor into - grass, bitumen, pavers, a concourse floor.
_x000D_Fill it on site and empty it before you pack up, so it travels empty rather than as a load in the van. It can also be used without water when the conditions are calmer and you only want a bit of extra steadiness.
_x000D_How many you need depends on the run of wall and how exposed the site is.