MAGNETIC ATTACHMENT: The PROLOC One Magnetic Barbell Collars contain two small magnets inside the collar for easy storage sticking to the metal exterior of a rack upright.
HAND ADJUSTMENT: The PROLOC 1 collars have an easy screw top that presses down onto the barbell sleeve with a cylindrical bit. The collars can fit nearly every bar that can take an Olympic plate with a 2-in diameter keeping your plates in place with a simple turn of the screw top.
TOUGH NYLON CONSTRUCTION: Highly durable nylon plastic construction means you can confidently perform your regular exercises and be certain that these collars will stand the test of time.
SLEEK APPEARANCE: Titan Fitness PROLOC 1 collars are customized black with 2 tiny circular magnets surrounding the TITAN logo, which is etched into the nylon on one side and PROLOC 1 on the other.
DIMENSIONS: The collars have a total width (thickness) of 1.5-in., a weight of 0.5 lb., and can fit nearly every Olympic bar with a 2-in. Diameter.