Features: 1.[Save Your Lug Nuts] Perfect for use in places with limited access, the ABN Torsional Limiting Extension Bars and Lug Nut Deep Impact Sockets 8 Pieces Set quickly and safely loosens bolts, nuts, and lug nuts at awkward angles and in difficult to achieve locations without marring or damaging your vehicle. 2.[Secure Hold] Extension torsion bars have a ball on the male end to help hold a socket; Spring loaded ball detent locks to prevent parts from slipping into machinery. 3.[Built to Last] Torsion bars constructed from chromium molybdenum steel (CR?MO) and manganese phosphate for maximum strength and longevity that resists rust and carrion. 4.[Scratch Resistant] White sleeve wheel nut socket constructed from chromium molybdenum steel (CR?MO) with 360?degree non scratch sleeve and insert to protect bolts top, wheel rims, and lug nuts from scratches during use. 5.[Easy Identification] Color coded rings on all pieces identifies each size; Sizing also permanently etch on bar shaft for quick identification. Specification: Item Type: Torsion Stick Set Material: Chromium Molybdenum Steel Specification: 1/2in Square Mouth 120Ft-lbs(160Nm) 110Ft-lbs(150Nm) 100Ft-lbs(135Nm) 90Ft-lbs(120Nm) Sleeve Size: 1/2in DR17mm,19mm,21mm,7/8in Applicable Models: General PackageList: 4 x Extension Torsion Bar 4 x Socket 1 x Toolbox (Packaging)