The darlac slug barricade forms a raised bed with slug defence from the outside as slugs or snails try to scale the barricade they meet with an impenetrable row of spikes even at the corners the panels are easily slotted together and the base spikes push into prepared ground with ease forming a barrier all around once connected r r each pack contains four panels which when joined together form a defended area of 625 sq cm but it is possible to join multiple packs to create a larger area