Gimbal Bearing Alignment and Install Kit, Heavy Duty Engine Alignment Tools Set Fits for Mercruiser Alpha, Alpha 1, MR, Bravo, OMC, Cobra, and Volvo Widely Compatible Built to Last Heat Treatment Screw Reinforcement Preserve Your Boat Built to Last Strong Connection Extension Rod: 1.4 x 12.4 inch/Ф35±0.2 x 315±3mm,Alignment Tool Rod Size: 1.4 x 12.6 inch/Ф35±0.2 x 320.5±3mm,Adapter Size: 3.4 x 1.2 inch/Ф85.4 x 31.4 mm,Item Model Number: HKCZ,Surface Treatment: Electrophoresis,Material: 45# Steel,Net Weight: 7.9lbs/3.6kg (All accessories included),Compatible Boats: Mercruiser Alpha, Alpha 1, MR,Bravo, OMC, Cobra, Volvo