This straight dumbbell bar is great for home or personal training centers, and they are durable and safe.The straight bar is 65" long and can be used in combination with other dumbbell sets. The set contains 8 different weight groups measuring 4 x 22 lb, 2 x 11 lb and 2 x 4.4 lb.The star shaped screw collars ensure the weights stay in place. The bar grip handles have a special structure for optimal grip during exercise. The weights are covered with a noise reducing plastic cover.Total weight: 132.3 lb Number of plates: 8 Plastic covering: yesBar length: 65"Bar weight: 13.2 lb3 section bar: 1pc hollow bar 19.7" + 2pcs solid bar 24.6"Bar diameter: 1"Grip handles: yes Screw collars: yes 4 x 22 lb barbell plates: Φ1' x 2.2"2 x 11 lb barbell plates: Φ9.8" x 1.6"2 x 4.4 lb barbell plates: Φ8.1" x 1.4"Bar maximum load capacity: 220.5 lbCalifornia Proposition 65