Wilko Serrated Copper Tape 4m is an environmentally friendly, long lasting, effective deterrent to protect plants in pots, planters, cold frames, raised beds or on staging, from slugs and snails.When slugs and snails try to cross the self-adhesive copper tape, a tiny electrical charge is created which causes them to retreat. The tape is poison free and children and pets need not be excluded from treated area.4m length x 3cm width. Doff 4m x 3cm Serrated Copper Tape Copper Tape & Cardboard