Heavy duty Hot dip galvanized finish Drop forged collar nut, 6mm or 8mm thickness base plate Item Length External Tube Internal Tube Weight EPS01 3'6"-6" 2.38" x 0.09" x 32.17" 1.91" x 0.126" x 41.65" 28kg EPS02 5'9"-10'3" 2.38" x 0.09" x 50.94" 1.91" x 0.126" x 66.73" 39kg EPS03 6'6"-11' 2.38" x 0.09" x 52.28" 1.91" x 0.126" x 77.48" 41kg EPS04 8'6"-13' 2.38" x 0.09" x 62.28" 1.91" x 0.126" x 101.5" 47kg EPS05 10'6"-15'6" 2.38" x 0.09" x 68.62" 1.91" x 0.126" x 125.5" 54kg