Global Truss CLAMP-POST 18-Inch Solid Aluminum Post with Welded ClampThis 18" post has a 2" wrap around pro clamp welded to one side.Features: 50mm heavy duty clamp with 18" long post Compatible with F31-F32-F33-F34-F44P Truss 18" post diameter 25.4mm Minimum tubing diameter 48mm Maximum tubing diameter 51mm Max load capacity 500 kgs. - 1100 lbs. TUV approved Weight 2.41 lbs.