1.Relief back pain and prevent further damage Your brain still thinks you can do the physical work you did in your 20s, but...if you have back problems and need to strengthen or help reduce stress, lumbar support is provided for you . It's sturdy enough to remind you not to bend or overexert it. When you put it on, you'll feel more confident about doing things that might hold you back. 2. Sufficient and extra support Backrest with back rail provides a rigid and strong support for your back to help you stand upright/sit straight. Provides the tightness and support you want. 3. Adjusted and new high density velcro. The new high density provides super strong velcro strength Adjustable straps - you can easily get the tightness you want. Just pull the sides of the longer bracket to make it tighter and provide more support. 4.Multifunctional Use every day when working in the gym. It is also practical when doing housework. Maintain a straight posture when working at a standing desk. Wear this when lifting weights, especially when doing squats.