A23 Cockroach Defence Brick (Sold Per Pcs)Ingredients: Turmeric powder, essential oil blends, bee wax, stearic acidDirections: Take out from packing and remove label. Place where you found cockroach appears, for example inside cupboard, next to trash, next to rice cooker, near toilet drain mouth, door and windows, etc. For every 2 3 weeks, when smell faded, cut away a thin layer from the brick (like peeling ginger skin, around 2 3mm), smell will be released again. One piece of brick is able