KINGSBOX ROLLER J-CUPS

We have a new Olympic barbell holder for the Royal series: Roller J Cups. They are designed similarly to the classic, well-known holders but have a roller made of technical plastics in the central part that also allows horizontal movement of the barbell. The advantage of the roller is that before the next lift, the barbell can be re-centered and re-balanced. With classic J cup holders, moving the barbell would damage the plastic on the holders.