●Impact Socket Set-Chrome Protective Plastic Sleeves, 15/17/19/21/22mm, Max Torque 550 N.m ●Must-have 5-piece set for anyone working with expensive, premium car and truck wheels ●Protects wheel - narrow socket casing has tough nylon sleeve - wont scratch chrome ●Nylon insert helps prevent damage to lug nut chrome or paint finish ●Socket body made of ultra-durable Chrome-Molybdenum - the strongest steel for sockets