Double wire hose clips to fit most pond corrugated hose. The clips are designed to clasp the hose between the hose ribs. Each clips has a screw attachment making it easier to adjust to fit snugly on the hose Clip Size in mm: 13 - 16 To fit hose with internal size in mm (in) :12.5 (0.5) Wire Diameter in mm : 1.6 Screw Size in mm  : 5x35