Feature: Change Your Car's Sporty Appearance Product may require drilling hole(s) to attach the product safely to the vehicle. Application of double sided tape may provide more stability and very highly recommended (however, not included). Product may be trimmed in order to accommodate vehicle's side skirt length Any damaged products due to non-professional or user error may not be returned for refund. Instruction Not included, Professional Installation Is Highly Recommended. Fitment For Tesla Model 3 2017-2021 Package 1 Pair of Side Skirt (Left & Right)