The CAP Barbell Pair of 14” Regular Threaded Dumbbell Handles are made with solid steel with a black powder coat finish. These Standard 1-inch dumbbell handles have knurling hand grips to prevent your hands from slipping during weight lifting exercises. Buying adjustable dumbbell handles is the way to go if you’re looking for variety in your workouts. Easily adjust the weight for different exercises and add more weights as you get more strength.