Upgrade your workouts with the Synergee Aluminum Barbell Collars, designed for lifters who demand strength, security, and speed. Built to outperform standard plastic collars, Synergee Aluminum Collars resist wear, maintain their grip, and provide long-lasting stability for every rep. The inner rubber lining protects your barbell sleeves from scratches while ensuring a snug, slip-free fit.
These barbell collars are made of machined aluminum, not plastic. They work well, with a solid positive lock when fully open. They are a good upgrade from cheap spring collars.