Dental Orthodontic Niti Open Coil Spring Light Force 180mm Length 0.01'' 0.012" Dentist Materials Dentisty Correction 2 pcs 

Orthodontic springs are designed to change the location of teeth in the dentition.

The opening spring (actually the spring) works in compression and is designed to create space in the dental arch.

Dimensions:

length 180mm diameter 0.014 inches, length 180mm diameter 0.008*0.030, length 180mm diameter 0.012*0.030, length 180mm diameter 0.010*0.030