Quickcar 75-135 3/4 Aluminum Scalloped Tube 13. 5in. 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 Specifics Alternate Description: 3/4 ALUMINUM SCALLOPED TUBE - 13. 5IN. Part Number: QRP75-135 Vendor Part Number: 75-135 UPC Code: 819616017506 Package Weight: 0. 85 lbs; 0. 39 kg Package Length: 13. 1 in; 33. 27 cm Package Width: 0. 9 in; 2. 29 cm Package Height: 1 in; 2. 54 cm Tube Shape: Scalloped Outside Diameter: 1-1/4 in Thread 1 Size: 3/4-16 in Thread 1 Direction: Right Hand Thread 2 Size: 3/4-16 in Thread 2 Direction: Left Hand Length: 13-1/2 in Alloy: 6061 Material: Aluminum Color: Black Finish: Anodized Quantity: Each