Our advice would be to place the bomb on a tray or solid plate in the centre of a cleared table, place the safety guard (included) around the bomb with further clear space around that. Light the wick and stand well back and wait. Do not remove the cardboard base from the bomb and like a firework do not return to the bomb once lit in the unlikely event it should fail to explode. (safety instructions included).Â
Buy one here if you live in the UK.