Like with all Builder® rig accessories, Builder® J-Cups can be inserted into any one of the four sides of a Builder® rig upright. Builder® Rig J-Cups feature heavy-duty UMHW plastic padding that provides maximum protection for your barbells.
Compatible with Get RX’d 3″ x 3″ Builder® rig uprights only.
• UMHW Plastic on all 3 angles of the J-Cup
• 2 1/4″ Triangle-weld support under the J-Cup to drastically increase weight capacity