CAP Barbell Standard 1-Inch Grip Weight Plate, Single, Gray, Various Sizes CONSTRUCTION  Made of solid cast iron and coated in a gray baked enamel finish to prevent chipping and peeling. Ground edges and machine center hole ensure a standardized product. Standard plates have a 1-inch center hole to accommodate standard bars. VERSATILE  Weight plates can be used to perform muscle strengthening exercises and endurance training, and to increase flexibility and balance. A single weight plate can also be used for warm-up exercises. FEATURES The 3-hole grip design allows for easy and safe handling while loading and unloading weights. Each weight features a gray baked enamel coating for a durable product that will withstand grueling workouts. CHOICES  These weights are available in 2.5, 5, 10 and 25 lbs. TRUST  Trust experience. CAP has been a pioneer in the fitness industry for over 30 years with locations worldwide. Chances are, if you have ever worked out before you have used a CAP product.