Condition: NewMaterial: UHMW-PE (ultra high molecular weight polyethylene), aircraft grade aluminumNo cut or fairing modifications requiredFit Models: Husqvarna2018 - 2021 Vitpilen 401 ( DOES NOT FIT Svartpilen 401 )PDF Instruction: This purchase is for an exhaust slider for the model above. The sliders are made of UHMW-PEl plastic, an engineering thermoplastic with good strength, wear resistance and dimensional stability. It is more dimensionally stable than Nylon and used in many industrial ball bearing and friction reducing applications. The bolt is made alloy steel grade 12.9. The aluminum spacer is made of 6061-T6 aircraft grade aluminum and finished in UV-resistant anodized dye and sealer. Rest assured that you are getting the best material commercially available.