The product is a set of calibrated fractional Olympic weight plates from the brand 44 Sport. It includes the following weights: 1 lb, 3/4 lb, 1/2 lb, and 1/4 lb. These multicolor plates have a diameter of 3.75 inches outside and 2 inches inside, making them suitable for bodybuilding and weightlifting activities. The set is designed for unisex adults and is perfect for gym training and strength training exercises. Made in the United States, these Olympic weight plates are a valuable addition to any fitness enthusiast's workout regimen.