Barbell 1 Half 1/2 lb.Fractional Rubber Olympic Weight Plates - 2, 4, 6, or 8 Pc Set CONSISTENT PREDICTABLE PROGRESS - Great for making progress each training session or microcycle DON'T STAGNATE - Microprogress your lifts to avoid plateaus and encourage continued progression in the weight room HIT YOUR NUMBERS - Great for percentage based training - more accurately hit your numbers GREAT FIT - no loose clanging around or falling off with our plates. All plates are 1/2 in. thick. Inside hole is ~2.0625" to fit snuggly and stay in place on Olympic barbells DON'T DAMAGE STUFF IN YOUR GYM BAG - our customers tell us all the time that they love carrying our plates in their gym bag because they don't have to worry about smashing or scraping their phone or more delicate items since our plates are all rubber