10pcs Spring steel torsion springs 0.5mm wire sping tensioning torsion spring

4 different sizes of torsion springs

（1）Wire diameter 0.5mm
OD 3.5mm
unsprung angle 90 degree or 180 degree (The default delivery is 90 degrees,If need 180 degrees, please leave a message)
the spring length is about 15mm

（2）Wire diameter 0.5mm
OD 4.5mm
unsprung angle 90 degree or 180 degree (The default delivery is 90 degrees,If need 180 degrees, please leave a message)
the spring length is about 15mm

（3）Wire diameter 0.5mm
OD 5.5mm
unsprung angle 90 degree or 180 degree (The default delivery is 90 degrees,If need 180 degrees, please leave a message)
the spring length is about 16mm

（4）Wire diameter 0.5mm
OD 6.5mm
unsprung angle 90 degree or 180 degree (The default delivery is 90 degrees,If need 180 degrees, please leave a message)
the spring length is about 25mm