The Viavito 4ft standard EZ curl bar is a great piece of equipment for strengthening your upper body and building up muscle toning, and it has an attractive chrome finish which not only ensures it stays looking great but also prevents rusting. The spinlock collars included with the weightlifting bar make putting on, taking off and securing weight plates in place very simple and quick. The knurled finish helps you grip the bar firmly so all reps are more stable, and the solid steel bar is made to a high specification for extra-long durability. It is compatible with \"standard\" weight plates with 1” (25.4mm) diameter holes.