50mm 1.96-Inch - Clamps for F31, F32, F33, F34 and F44P Trussing Clamps fasten from 48mm 1.89-Inch to 51mm 2.00-Inch A broad selection of TUV Rated Clamps for Rigging or Suspending Lighting Fixtures on Trussing or Single Tubing. Our series of Clamps can provide you solutions for successful Theater Shows, Stage Lighting Applications, Speed Rail, Mobile DJ Events or Church Stages