Arrowmounts AM-PB1.5NPT-104 1.5-Inch NPT 220-370mm (8.66-14.57-Inch) Adjustable Pipe 5 different positions of height adjustment from 220 to 370mm (8.66~14.57") Lift and twist for height adjustment and lock into place Threaded on both ends Max load: 200LBS (90Kg) Master carton qty: 12 units. RoHS compliant