HIT FITNESS J hooks are power rack attachments which insert into the power rack at various height levels to safely hold a barbell in place. Not compatible with Commercial Racks. Benefits: Increases barbell stability and safety when unracking and racking the barbell. Protects both the barbell and power rack from damage inflicted during unracking and racking of the barbell. Easy to adjust to match height requirements Suitable for commercial and home gym usage. They reduce the movement of the barbell whilst it is racked which makes loading and unloading weights from the barbell easier and quicker. Specifications: Adjustable J Hooks Colour: Black Sold in pairs Suitable attachment for HIT FITNESS Power Racks Fitness tip: J hooks are primarily used when racking and unracking barbells whilst performing movements such as the overhead press, squat, and bench press.