TPI (20pcs) M12x1.50 Open End Cold Forged Duplex Aluminum Racing Lug Nuts w/locks, AL40-2545-45N/BL-20,Blue Annodized, 19mm Hex W/Lock Kit, 20pcs W/Lock, 45mm Height, Cone Seat, JDM Cold Forged Aluminum 7075 Extended 45mm length open ended design with knurled ends; can be removed with a 19mm hex socket Ultra Lightweight; each lug weighs just under 2 ounces Open end lugs allow for extended wheel studs Double knurled end for easy installation and removal