Improve the aesthetics and dynamics of your car with this pair of 20mm Racing Line Hubcentric Wheel Spacers & Ball-Seat Bolt Kit. Racing Line’s Hubcentric Wheel Spacers & Bolt Kits are one of the best and most affordable upgrades you can make to your car. Once installed, the increased track width not only improves your car’s appearance, but also enhances driving dynamics with greater stability. By physically moving the wheel further away from the hub, these spacers give your wheels the desired offset needed to create the stance or look you desire, flush with your wheelarches, whilst also providing the additional clearance necessary to fit over bigger brake calipers or coilovers. The Racing Line Spacers are sold in pairs. This set is 20mm in width, with options for 12.5mm, 15mm and 17.5mm also available. By selling in pairs, you can mix your spacer widths front to rear to allow you achieve your perfect stance. With each pair of spacers, 10x ultra-strong grade-12.9 Carbon Steel replacement black wheel bolts are included. When ordering, remember to select whether you are using this set of Ball-Seat bolts (OEM wheels), or alternatively Tapered/Conincal-seat bolts (most aftermarket wheels). It's essential that these longer bolts are fitted - not all spacers come with these included. Whichever width you select, the Racing Line Spacers are of a Hubcentric design, meaning that they are machined with an alloy spigot to make for perfect centering whilst maintaining the OE 57.1mm centre-bore for the correct fitment. The Hubcentric lip ensures precise location onto the car’s hub, making them easier to fit and less prone to vibration through imbalance – all experts strongly advise against any wheel spacers that aren’t of this Hubcentric design on a performance car! Of course, the obsessive manufacturing quality and design details of these Wheel Spacers are what you'd expect from Racing Line. They are precision machined from heat treated aerospace aluminium 7075 T6 for increased strength and durability, plus significant weight savings compared to other cheaper steel or 6000 series spacers. The coating is beautiful black-anodising to protect the aluminium from road dirt and corrosion. This surface treatment avoids the risk of "bonding" to the wheel or hub that can happen with cheaper finishes over time, and combines with the design of the rear mounting faces which feature cut outs to make removal easy even after thousands of road miles. Finally, the subtle laser-etched ‘R-bar’ logos are a nice finishing touch, just visible through your wheel spokes.