Max. Load kg: 6 / lb: 13.2Weight kg: 1.04 / lb: 2.28Material AluminumBottom Length/ L1mm: 215 / inch: 8.46Top Length/ L2mm: 215 / inch: 8.46Total Length L1+L2mm: 430 / inch: 16.92Bottom Thread 3/8″ – 16 Ext.Top Thread 1/4″ – 20 Ext. + Nut