Product == Torsion Springs x 10pcsSize == WD 1.2mm; 60/90/120/180 Degrees; OD 10mm; Inner Diameter 7.5mm; Leg Long 35mmMaterial == Our Torsional Springs are made of spring steel, which has good elasticity and ,reusable and stable for a long service time. Widely Used for == The Mini torsion spring Assorted is suitable for daily use repairment, such as toys, pliers, woodworking, DIY projects and so on.Tips == Use the pliers to cut if you need shorter leg Long.WIDE Used for: Widely used in doors, curtain, automobiles, bicycles, Steel devices, umbrella, kettle, , aircraft, antique tape recorder, repair toy, pliers, piano, scissors, electrical, etc