The 2" Olympic Bar Collars PAIR by Iron Lab are essential accessories for barbell and dumbbell training. Made from durable plastic and rubber, these black collars are designed for gym and training purposes. Suitable for unisex adults, these collars are a practical addition to your weightlifting equipment, providing stability and security during your workouts. Perfect for Olympic bars, these collars are a must-have for any fitness enthusiast looking to enhance their strength training routine.