Build powerful biceps with the POWERHOUSE Curl Bar. Threaded collar system is the quick and easy way to secure barbell plates for safe problem free lifts. The POWERHOUSE solid steel curl bar is cambered to prevent uncomfortable and sometimes painful stress to wrists and forearms. Rubber gripping area ensures comfortable and slip resistant grip. Attractive and durable chrome bar is designed to accommodate all standard plates with 1" diameter holes so you can add additional weight as your strength increases.