The Fitness First 10-Sided Fixed Urethane Encased Straight Barbells are perfect for quickly changing from one weight to another to get a great workout. Includes one barbell. Select your desired weight from 25 lbs to 115 lbs. On either end of the solid 30 mm steel shaft is a solid 10-sided iron core covered by a thick layer of urethane to reduce noise and improve durability. Knurling for secure grip. Hard chrome steel barbell.