TM105 Spotter Arms (Pair) The TM105 Spotting Arms are the safety essential for any serious training space. Constructed from solid steel with a rubber-lined catch surface to protect your barbell and frame, these arms are engineered to handle the bar confidently during missed lifts on bench press, squats, and other heavy movements — so you can train at your limit without hesitation. The lock-on system makes installation and removal fast and simple, while the design is purpose-built to suit 70mm x 70mm uprights with 25mm holes, ensuring a secure fit on compatible cross training rig posts. Solid steel construction for maximum durability Heavy-duty design for demanding workouts Rubber base inserts to protect your barbell Easy lock-on/off mechanism for quick setup Designed for 70mm x 70mm uprights Fits into standard 25mm diameter holes