Plastimo Safety Hook - Tethers 2 HookPlastimo Safety Hook Tethers 2 Hook Safety Hook Tether with automatic closing stainless steel safety hook(s) to prevent accidental opening. Safety Hook Tether Key Features Tether type : Flat No. hooks : 2 Length : 1. 5mtr Weight 345g Polyester flexible tethers with retro reflective thread to optimize visibility at night. Flat, elastic, or double 23 mm width version. ISO12401 certified. Strain indicator. Supplied in a mesh bag.