Great for beginners and improvers alike, these Olympic Weightlifting Technique Boxes (Power Jerk Blocks) allow users to alter the height when learning the pull sections of the ‘clean’ and ‘snatch’. Superb training tool that’s a great starting point for learning and training Olympic Lifts, Modified Lifts and Olympic Pulls Strong wooden construction holds any weight with stoppers preventing the weight bar from rolling off Handles on the narrow side ensures easy movability Helps the athlete start each repetition from an equivalent position to their hip, thigh, knee or shin, gradually progressing to a full repetition from the floor Box sizes include 5.7cm, 15cm, 30.5cm and 38cm with a total stack height of around 90cm. Possibility of 13 different height combinations The NEW Technique Box from Jordan Fitness comes in a pair (set of 8) SPECIFICATION: Brand Jordan Usage Home Use, Commercial Use Condition Brand New Warranty 12 Month Warranty