ABN 1/2" Inch Impact Drive Lug Nut Socket & Extension Bar 4-Piece Set &ndash; Metric, Non-Marring, Thin-Walled Rim Protectors DAMAGE-FREE WHEEL BOLT REMOVAL: Use the ABN 1/2 Inch Impact Drive 17mm, 19mm, 21mm Lug Nut Socket & Extension Bar 4-Piece Set  Metric, Non-Marring, Thin-Walled Rim Protectors to remove bolts on vehicle wheels as the protective sleeves prevent damage on custom rims and lug nuts SAFE: 360 non-scratch sleeve and insert protect bolt tops, wheel rims, and lug nuts from scratches during use; 6-point thin-walled socket constructed from chromium-molybdenum steel (Cr-Mo) which makes the socket strong and long-lasting; Wont rust or corrode VARIOUS APPLICATIONS: Perfect for both factory and aftermarket painted, clear coated, chrome, and other wheels/bolts; Fits all 1/2-inch drive socket hand wrenches, electric, or air tools; Hollow design allows room for removing longer bolts; Metric sizes 17mm (blue), 19mm (orange), 21mm (red); Fit most vehicles with these size wheel bolts (Example: 17mm = BMW, Mercedes Benz, Audi, Mini Cooper) EASY STORAGE: Heavy-duty 5.5 x 2 x 6 inches (14cm x 5.1cm x 15.2cm) plastic blow-molded carrying case for easy transport, simple storage, and quick organization SPECIFICATIONS: Thin-walled, non-marring, and laser etched; 1/2" drive; 3-3/8 (8.6cm) overall length; Package includes (3) lug nut sockets + (1) 5-inch extension bar + (1) carrying case (3) Sockets <ul class="a-unordered-list a-vertical"> 17mm 19mm 21mm (1) Extension bar <ul class="a-unordered-list a-vertical"> 5 (12.7cm) (1) Carrying case <ul class="a-unordered-list a-vertical"> 5.5 x 2 x 6 (14cm x 5.1cm x 15.2cm)