The Calibrated KG Steel Plates are designed and machined to have the thinnest profile available for minimal space usage on the bar. Each plate is color-coded for easy identification and features dual TITAN logos, KG weight indications, and a 50.5 mm collar opening, which fits Olympic-sized barbells. The back of each plate includes calibration plugs for greater precision within a 10-gram tolerance of weight. Suitable for Olympic weightlifting and Powerlifting, these precision discs are developed for but are not limited to squat, bench, and deadlift movements. Smash your daily workouts and hit your PR with these machine calibrated plates.