The Brass Knuckle SmartFlex 400 Series gloves are comfortable, general-purpose work gloves that provide abrasion resistance and maximum dexterity. There are three gloves in the 400 Series, each suited for a different style of work. The BK401 is black nylon with a gray coating to conceal dirt and grime; the BK402 is white-on-white, making it easy to identify foreign particles on the glove for inspectors and quality control; and the BK403 is black nylon with a black coating, a tough-looking concealer for grimy projects. The lightweight, 13-gauge nylon shell facilitates dexterity and grip, and the grip is further enhanced by a polyurethane coating on the palm and fingers that provides maximum strength but is not sticky.