This carrying case contains the most frequently requested stainless steel and X-ray Goniometers. The set includes: Robison Pocket Goniometer 15cm-180 degree Stainless Steel Goniometer 35cm -180 degree Stainless Steel Goniometer 35cm -360 degree Stainless Steel Finger Goniometer 12cm X-Ray Goniometer 20cm - 180 degree Stainless Steel Goniometer 20cm - 180 degree