Mikolo Flat Sandwich J-Cups for 2" X 2" Racks Built for heavy lifting and confident reracking, these Sandwich J-Cups combine a solid steel frame with protective nylon pads to deliver strength and barbell protection in one design. The 2.9" opening and taller front lip help guide the bar into place, while the secure pin-lock system keeps the J-Cups stable under loads up to 1,500 lb. Easy height adjustments make transitions between squats, presses, and bench work quick and hassle-free. Compatible with 2" × 2" rack uprights with 1" holes.