DPAccessories LCB3L2CP-BK05LK4 Black Wheel Locks 1/2-20 Closed End Bulge Acorn 3/4 & 13/16 Locking Lug Nuts Wheel Lock Set UPGRADED SECURITY FOR WHEELS & TIRES: Our unique key-to-lock combinations will help guard your wheels and tires against theft. Recommended installation is one locking lug nut per wheel. FITS: Vehicles with wheel studs requiring a 1/2"-20 thread and wheels that take a conical 60 degree seat with either a 3/4" or 13/16" hex. SPECS: 1/2"-20 thread - Closed End Bulge Acorn Style Locking Lug Nuts - Conical 60 Degree Seat - Dual Hex (3/4" and 13/16") - 1.28" long - 0.9" wide REQUIRES: Unique security key for installation and removal. One (1) key included with this set. For replacement keys contact DP-Accessories with your original key number. INCLUDES: Four (4) black wheel locks and one (1) matching key.