Aluminum Suspension Tubes are a scalloped design which result in being 35% stronger than conventional aluminum tubes. USA-made from premium 6061 aluminum, QuickCar tubes feature precision machined ends and a corrosion-resistant, black anodized finish. Each suspension tube includes an identification on the left hand threaded end. Adjustments can be made by hand, or with a wrench(sold separately, #66-6275)Item SpecificsAlternate Description: 3/4 ALUMINUM SCALLOPED TUBE - 15IN. Part Number: QRP75-150Vendor Part Number: 75-150UPC Code: 819616017537Package Weight: 0. 9 lbs; 0. 41 kgPackage Length: 14. 6 in; 37. 08 cmPackage Width: 1 in; 2. 54 cmPackage Height: 0. 8 in; 2. 03 cmTube Shape: ScallopedOutside Diameter: 1-1/4 inThread 1 Size: 3/4-16 inThread 1 Direction: Right HandThread 2 Size: 3/4-16 inThread 2 Direction: Left HandLength: 15 inAlloy: 6061Material: AluminumColor: BlackFinish: AnodizedQuantity: Each