The Rentokil Slug & Snail Barrier Tape is a non-toxic, adhesive copper tape to protect plants from slugs and snails. It is ideal for pots, tubs and troughs. Poison free and safe to use around children and pets. Copper tape is used to keep slugs and snails out of certain areas in gardens, potted plants, tree trunks (fruit trees) and other shrubs and plants that Slugs and Snails like. How to use: Peel back the white backing and then stick to the plant pot / tree (removing loose dirt first) Length: 4 metres. 4 Metre Roll will do around 10 x 12.5in plant pots.