Max. Load kg: 5 / lb: 11Weightkg: 0.65 / lb: 1.43Material AluminumBottom Length L1mm: 133 / inch: 5.25Top Length L2mm: 133 / inch: 5.25Total Length L1+L2mm: 266 / inch: 10.5Bottom Thread 3/8″ – 16 Ext.Top Thread 1/4″ – 20 Ext. + Nut