These are different types of magnetic compasses for students , schools and hobbyists.
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Order# | Description | Size |
 C1SG12 |  Aluminum Case, Glass Top, Pk/10 |  12mm |
 C1SG16 |  Aluminum Case, Glass Top, Pk/12 |  16mm |
 C1SG18 |  Aluminum Case, Glass Top |  18mm |
 C1SG20 |  Aluminum Case, Glass Top |  20mm |
 C1SG25 |  Aluminum Case, Glass Top |  25mm |
 CWR025 |  Aluminum Case, Glass Top With Ring |  25mm |
 CWR030 |  Aluminum Case, Glass Top With Ring |  30mm |
 CPL035 |  Plastic Case, Plastic Top |  35mm |
 CWR045-W |  Aluminum Case, Glass Top With Ring |  45mm |
 CWR045-B |  Aluminum Case, Glass Top With Ring |  45mm |
 CWL045 |  Aluminum Case, Glass Top With Lock |  45mm |