Product Name: Light vest; Light source: LED*4; Material: TPU light guiding fiber; LED controller: double box independent control; Battery: 4* 3V 2016 button battery (included); Reflective distance: visible outside 200m; Applicable temperature: -30-80 C; Washing: hand wash (after removing the LED group); Applicable scene: riding, running; Uses: night safety; Belt size: width: 5cm, waist: 60-110cm, adjustable; Fiber size: diameter: 3mm, length: 130cm; Quantity: 1 pcs Package List 1 pcs Outdoor 360 Reflective LED Flash Driving Vest Due to the different monitor and light effect,the actual color maybe a slight different from the picture color. Please allow 2-3cm differs due to manual measurement. 1Simple structure, easy to wear, high brightness. 2 Comfortable, durable, washable, has a good feel and highly reflective effects. 3 Bicycle riding reflective vest, super-bright reflective, folded portable and lightweight, comfortable to wear. 4 Outdoor activities during the day or night to lets you improve security. 5 Suitable for night running, cycling, outdoor sports.