FITS INNER 5CM WEIGHT BARS: Designed with 20cmx10cm/7.87inchx3.94inch long axis bar sleeve with a base to fit inner 5cm Weight Training bars and weight board.EASY TO INSTALL WITH SECURE KNOB: Insert bar and weight board into the sleeves and tighten the bar in place with the secure knob.FULL 360 DEGREE SWIVEL: Full range swivel up and down for variety of exercises. Great for total core workout: traps, biceps, back, shoulders, abs, hamstrings, and much more.GREAT FOR STRENGTH TRAINING: Acting on angled barbell facilitates movements that are simply impossible with a traditional barbell or dumbbell. can increase the difficulty of many exercises such as Deadlifts, Squats and Single Arm Rows,PressesPERFECT GIFT: The perfect gift for sports and fitness enthusiasts for full body muscle building. Specification: Material: EVA, Metal Color: Black Size Chart: 20cmx10cm/7.87inchx3.94inch Inner Diameter5cm/1.97inch Package Includes: 1T Bar Row Attachment Note: 1. Please allow slightly error due to manual measurement.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item.3. Wish you a wonderful on line shopping!