Solid and Ultra Durable: Made of heavy-duty cast iron with a machined stainless steel hub to ensure a durable, reliable weight that will last through grueling workouts. Coated with dense rubber to alleviate damage to floor. Universal and Versatile: Fitting all standard Olympic bars and racks with a 2-inch hole; Can be used to perform muscle strengthening exercises and endurance training, and to increase flexibility and balance, single weight plate is also great for warm up. Comfortable and Convenient: Each plate has 3 openings with strips on them for easy and secure grip when loading and unloading the weights. Labeled in LB for easy recognition. Choose from our stock of top-of-the-line Olympic weight plates, which include the following plates: 15 pound pair Purchase with Confidence in LIONSCOOL: LIONSCOOL is dedicated to providing convenient and effective workout solutions for all. We understand the journey to a better and healthier you because we're just like yo