Product Size: M [suitable for waist circumference 1 feet 5-2 feet 1], L [suitable for waist circumference 2 feet 2-2 feet 6], XL [suitable for waist circumference 2 feet 7-3 feet] Colour: Black Material: Rubber Package content: 1*waist support 1.6 SUPPORT BARS: Support bars made of steel springs not only provide stable support for the back and lumbar vertebrae, but also greater comfort and a longer period of use, effectively supports the spine and relieves it. 2.DOUBLE BELT DESIGN: Double-layer tension belts to increase the support effect and for additional stabilization, offers compression for effective posture correction, give you a very good three-dimensional fit. 3.PREMIUM QUALITY: High-quality neoprene and first-class workmanship make this fitness belt very soft and it does not cut into the skin. Breathable knitted belts do not produce fluff after long-term use, nor do they distort after many washes. 4.STRONG VELCRO FASTENER: Thousands of possible uses guarantee stability during sports and outdoor activities. Also a great support for your back and lumbar vertebrae when you are at home or in the office. 5.MULTIFUNTIONAL: Practical belt can be used to prevent back injuries, correct posture, increase back and lumbar mobility and fitness.