Solenoid covers from Sickspeed. Made from weapons grade billet aluminum. Anodized for a long lasting and permanent color The bells inside diameter 25.4mm and outside diameter is 29mm The lips inside diameter is 30mm and outside diamteer is 34mm Sickspeed is proudly lasered on the top May fit more cars than are in the compatibility Please note this is the smaller Solenoid, Please double check the exact size that you need before purchase. Don't forget to check out our other listings for parts and accessories to suit your ride. We are always expanding so keep an eye out for more supreme quality products from Sickspeed. Purchase includes a die-cut vinyl decal: Check out the manufacturer's website for more info and pics.