KAIZEN Power Rack Spacer - Make 3x3 Attachments Fit 60mm (2.36) x 6 – F and F Steel

X-3 Series Roller J-Hooks

AmStaff Fitness J-Hooks Power Rack for 2x 2 2.5x2.5 3x3 2.5x3.25 Tube Squat Rack Attachment, J Cups Barbell Holder for Power Cage, Heavy Duty

J-Hooks for 3 x 3 Power Rack with 5/8 or 1 Hole - Bottom Reinforced Steel Hooks with Rubber Pads - Heavy Duty Power Rack Attachments - Squat Rack

2x2 J-Cups By Fringe Sport

2x3 J-Cup (Pair) 5/8 hole/J-Hook Barbell Holder Attachment for Rack/For Weightlifting, Strength Training, Crossfit & More

Signature Fitness SF-3 1,500 Pound Capacity 3” x 3” Power Cage Squat Rack, Includes J-Hooks and Safety Straps, Other Optional Accessories, J-Hooks - Yahoo Shopping

Pair of X-3 or TITAN Series Dumbbell Weight Bar Holders - Rated 225 LB Each - J-Hook Style Mounting

The Harbor Squat Stand 3x3 Inch – Harbor Heavyweights Co.

J Cups – Rage Fitness

J Cup Rollers - 2 x 3 inch - Pair – Radium Fitness