[Specification] -- Size = WD * OD * Long
[WD] -- 2.5mm
[OD] -- 20mm
[Long] -- 60mm, 70mm, 80mm, 90mm, 100mm, 110mm, 120mm, 130mm, 140mm, 150mm, 160mm, 180mm, 200mm, 220mm, 240mm, 250mm, 260mm, 280mm, 300mm
[Package Include] -- 2pcs * Tension spring ( hook opening )
WIDE Used for: Widely used in doors, curtain, automobiles, bicycles, Steel devices, umbrella, kettle, razor, aircraft, antique tape recorder, repair toy, pliers, piano, scissors, electrical, etc