SeaKing Stores › 4mm shock cord - black - per metre 4mm shock cord - black - per metre £0.90 4mm shock cord - black - per metre. Kingfisher elastic shock cord. Price is per metre; quantity 5 means a continuous 5m length where available. Add To Cart Added! 4mm shock cord - black - per metre. Kingfisher elastic shock cord. Price is per metre; quantity 5 means a continuous 5m length where available.